Home / 14,780.92-20,397.49-8,066.66

Finding the Fourth Proportional to 14,780.92, 20,397.49 and 8,066.66

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Solution

The fourth proportional to 14,780.92, 20,397.49 and 8,066.66 is: 11,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.92 : 20,397.49 = 8,066.66 : x
  2. Step 2: Convert to fraction form
    14,780.92/20,397.49 = 8,066.66/x
  3. Step 3: Cross multiply
    14,780.92x = 20,397.49 × 8,066.66
  4. Step 4: Simplify right side
    14,780.92x = 164,539,616.68
  5. Step 5: Solve for x
    x = 164,539,616.68/14,780.92
  6. Step 6: Final answer
    x = 11,131.89

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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.