Home / 8,211.70-12,316.74-2,663.47

Finding the Fourth Proportional to 8,211.70, 12,316.74 and 2,663.47

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Solution

The fourth proportional to 8,211.70, 12,316.74 and 2,663.47 is: 3,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.70 : 12,316.74 = 2,663.47 : x
  2. Step 2: Convert to fraction form
    8,211.70/12,316.74 = 2,663.47/x
  3. Step 3: Cross multiply
    8,211.70x = 12,316.74 × 2,663.47
  4. Step 4: Simplify right side
    8,211.70x = 32,805,267.49
  5. Step 5: Solve for x
    x = 32,805,267.49/8,211.70
  6. Step 6: Final answer
    x = 3,994.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.