Home / 13,132.12-18,129-10,141.24

Finding the Fourth Proportional to 13,132.12, 18,129 and 10,141.24

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Solution

The fourth proportional to 13,132.12, 18,129 and 10,141.24 is: 14,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.12 : 18,129 = 10,141.24 : x
  2. Step 2: Convert to fraction form
    13,132.12/18,129 = 10,141.24/x
  3. Step 3: Cross multiply
    13,132.12x = 18,129 × 10,141.24
  4. Step 4: Simplify right side
    13,132.12x = 183,850,539.96
  5. Step 5: Solve for x
    x = 183,850,539.96/13,132.12
  6. Step 6: Final answer
    x = 14,000.07

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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.