Home / 14,877.27-20,542.28-11,143.17

Finding the Fourth Proportional to 14,877.27, 20,542.28 and 11,143.17

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Solution

The fourth proportional to 14,877.27, 20,542.28 and 11,143.17 is: 15,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.27 : 20,542.28 = 11,143.17 : x
  2. Step 2: Convert to fraction form
    14,877.27/20,542.28 = 11,143.17/x
  3. Step 3: Cross multiply
    14,877.27x = 20,542.28 × 11,143.17
  4. Step 4: Simplify right side
    14,877.27x = 228,906,062.51
  5. Step 5: Solve for x
    x = 228,906,062.51/14,877.27
  6. Step 6: Final answer
    x = 15,386.29

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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.