Home / 13,710.60-18,919.17-10,127.43

Finding the Fourth Proportional to 13,710.60, 18,919.17 and 10,127.43

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Solution

The fourth proportional to 13,710.60, 18,919.17 and 10,127.43 is: 13,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.60 : 18,919.17 = 10,127.43 : x
  2. Step 2: Convert to fraction form
    13,710.60/18,919.17 = 10,127.43/x
  3. Step 3: Cross multiply
    13,710.60x = 18,919.17 × 10,127.43
  4. Step 4: Simplify right side
    13,710.60x = 191,602,569.83
  5. Step 5: Solve for x
    x = 191,602,569.83/13,710.60
  6. Step 6: Final answer
    x = 13,974.78

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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.