Home / 14,780.90-20,397.59-8,066.59

Finding the Fourth Proportional to 14,780.90, 20,397.59 and 8,066.59

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Solution

The fourth proportional to 14,780.90, 20,397.59 and 8,066.59 is: 11,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.90 : 20,397.59 = 8,066.59 : x
  2. Step 2: Convert to fraction form
    14,780.90/20,397.59 = 8,066.59/x
  3. Step 3: Cross multiply
    14,780.90x = 20,397.59 × 8,066.59
  4. Step 4: Simplify right side
    14,780.90x = 164,538,904.19
  5. Step 5: Solve for x
    x = 164,538,904.19/14,780.90
  6. Step 6: Final answer
    x = 11,131.86

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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.