Home / 13,687.90-20,496.24-11,726.10

Finding the Fourth Proportional to 13,687.90, 20,496.24 and 11,726.10

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Solution

The fourth proportional to 13,687.90, 20,496.24 and 11,726.10 is: 17,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.90 : 20,496.24 = 11,726.10 : x
  2. Step 2: Convert to fraction form
    13,687.90/20,496.24 = 11,726.10/x
  3. Step 3: Cross multiply
    13,687.90x = 20,496.24 × 11,726.10
  4. Step 4: Simplify right side
    13,687.90x = 240,340,959.86
  5. Step 5: Solve for x
    x = 240,340,959.86/13,687.90
  6. Step 6: Final answer
    x = 17,558.65

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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.