Home / 14,540.66-21,781.39-13,329.71

Finding the Fourth Proportional to 14,540.66, 21,781.39 and 13,329.71

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Solution

The fourth proportional to 14,540.66, 21,781.39 and 13,329.71 is: 19,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.66 : 21,781.39 = 13,329.71 : x
  2. Step 2: Convert to fraction form
    14,540.66/21,781.39 = 13,329.71/x
  3. Step 3: Cross multiply
    14,540.66x = 21,781.39 × 13,329.71
  4. Step 4: Simplify right side
    14,540.66x = 290,339,612.10
  5. Step 5: Solve for x
    x = 290,339,612.10/14,540.66
  6. Step 6: Final answer
    x = 19,967.43

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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.