Home / 12,117.70-18,176.55-4,327.30

Finding the Fourth Proportional to 12,117.70, 18,176.55 and 4,327.30

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Solution

The fourth proportional to 12,117.70, 18,176.55 and 4,327.30 is: 6,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.70 : 18,176.55 = 4,327.30 : x
  2. Step 2: Convert to fraction form
    12,117.70/18,176.55 = 4,327.30/x
  3. Step 3: Cross multiply
    12,117.70x = 18,176.55 × 4,327.30
  4. Step 4: Simplify right side
    12,117.70x = 78,655,384.82
  5. Step 5: Solve for x
    x = 78,655,384.82/12,117.70
  6. Step 6: Final answer
    x = 6,490.95

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Similar ratio
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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.