Home / 13,744.59-18,966.45-8,079.55

Finding the Fourth Proportional to 13,744.59, 18,966.45 and 8,079.55

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Solution

The fourth proportional to 13,744.59, 18,966.45 and 8,079.55 is: 11,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.59 : 18,966.45 = 8,079.55 : x
  2. Step 2: Convert to fraction form
    13,744.59/18,966.45 = 8,079.55/x
  3. Step 3: Cross multiply
    13,744.59x = 18,966.45 × 8,079.55
  4. Step 4: Simplify right side
    13,744.59x = 153,240,381.10
  5. Step 5: Solve for x
    x = 153,240,381.10/13,744.59
  6. Step 6: Final answer
    x = 11,149.14

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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.