Home / 13,687.27-18,899.12-10,711.59

Finding the Fourth Proportional to 13,687.27, 18,899.12 and 10,711.59

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Solution

The fourth proportional to 13,687.27, 18,899.12 and 10,711.59 is: 14,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.27 : 18,899.12 = 10,711.59 : x
  2. Step 2: Convert to fraction form
    13,687.27/18,899.12 = 10,711.59/x
  3. Step 3: Cross multiply
    13,687.27x = 18,899.12 × 10,711.59
  4. Step 4: Simplify right side
    13,687.27x = 202,439,624.80
  5. Step 5: Solve for x
    x = 202,439,624.80/13,687.27
  6. Step 6: Final answer
    x = 14,790.36

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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.