Home / 13,436.10-20,132.55-11,232.90

Finding the Fourth Proportional to 13,436.10, 20,132.55 and 11,232.90

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Solution

The fourth proportional to 13,436.10, 20,132.55 and 11,232.90 is: 16,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.10 : 20,132.55 = 11,232.90 : x
  2. Step 2: Convert to fraction form
    13,436.10/20,132.55 = 11,232.90/x
  3. Step 3: Cross multiply
    13,436.10x = 20,132.55 × 11,232.90
  4. Step 4: Simplify right side
    13,436.10x = 226,146,920.90
  5. Step 5: Solve for x
    x = 226,146,920.90/13,436.10
  6. Step 6: Final answer
    x = 16,831.29

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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.