Home / 12,432.80-18,717.26-11,344.16

Finding the Fourth Proportional to 12,432.80, 18,717.26 and 11,344.16

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Solution

The fourth proportional to 12,432.80, 18,717.26 and 11,344.16 is: 17,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.80 : 18,717.26 = 11,344.16 : x
  2. Step 2: Convert to fraction form
    12,432.80/18,717.26 = 11,344.16/x
  3. Step 3: Cross multiply
    12,432.80x = 18,717.26 × 11,344.16
  4. Step 4: Simplify right side
    12,432.80x = 212,331,592.20
  5. Step 5: Solve for x
    x = 212,331,592.20/12,432.80
  6. Step 6: Final answer
    x = 17,078.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.