Home / 12,123.04-16,729.48-6,817.76

Finding the Fourth Proportional to 12,123.04, 16,729.48 and 6,817.76

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Solution

The fourth proportional to 12,123.04, 16,729.48 and 6,817.76 is: 9,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.04 : 16,729.48 = 6,817.76 : x
  2. Step 2: Convert to fraction form
    12,123.04/16,729.48 = 6,817.76/x
  3. Step 3: Cross multiply
    12,123.04x = 16,729.48 × 6,817.76
  4. Step 4: Simplify right side
    12,123.04x = 114,057,579.56
  5. Step 5: Solve for x
    x = 114,057,579.56/12,123.04
  6. Step 6: Final answer
    x = 9,408.33

Related Problems

Find fourth proportional to 6,061.52, 8,364.74 and 3,408.88
Half scale
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Double scale
Find fourth proportional to 12,124.04, 16,730.86 and 6,818.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.