Home / 14,785.38-20,402.96-8,497.76

Finding the Fourth Proportional to 14,785.38, 20,402.96 and 8,497.76

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Solution

The fourth proportional to 14,785.38, 20,402.96 and 8,497.76 is: 11,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.38 : 20,402.96 = 8,497.76 : x
  2. Step 2: Convert to fraction form
    14,785.38/20,402.96 = 8,497.76/x
  3. Step 3: Cross multiply
    14,785.38x = 20,402.96 × 8,497.76
  4. Step 4: Simplify right side
    14,785.38x = 173,379,312.87
  5. Step 5: Solve for x
    x = 173,379,312.87/14,785.38
  6. Step 6: Final answer
    x = 11,726.40

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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.