Home / 13,687.15-18,898.95-10,711.46

Finding the Fourth Proportional to 13,687.15, 18,898.95 and 10,711.46

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Solution

The fourth proportional to 13,687.15, 18,898.95 and 10,711.46 is: 14,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.15 : 18,898.95 = 10,711.46 : x
  2. Step 2: Convert to fraction form
    13,687.15/18,898.95 = 10,711.46/x
  3. Step 3: Cross multiply
    13,687.15x = 18,898.95 × 10,711.46
  4. Step 4: Simplify right side
    13,687.15x = 202,435,346.97
  5. Step 5: Solve for x
    x = 202,435,346.97/13,687.15
  6. Step 6: Final answer
    x = 14,790.18

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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.