Home / 13,132.24-18,129.20-10,141.36

Finding the Fourth Proportional to 13,132.24, 18,129.20 and 10,141.36

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Solution

The fourth proportional to 13,132.24, 18,129.20 and 10,141.36 is: 14,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.24 : 18,129.20 = 10,141.36 : x
  2. Step 2: Convert to fraction form
    13,132.24/18,129.20 = 10,141.36/x
  3. Step 3: Cross multiply
    13,132.24x = 18,129.20 × 10,141.36
  4. Step 4: Simplify right side
    13,132.24x = 183,854,743.71
  5. Step 5: Solve for x
    x = 183,854,743.71/13,132.24
  6. Step 6: Final answer
    x = 14,000.26

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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.