Home / 13,589.04-20,380.32-12,267.12

Finding the Fourth Proportional to 13,589.04, 20,380.32 and 12,267.12

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Solution

The fourth proportional to 13,589.04, 20,380.32 and 12,267.12 is: 18,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.04 : 20,380.32 = 12,267.12 : x
  2. Step 2: Convert to fraction form
    13,589.04/20,380.32 = 12,267.12/x
  3. Step 3: Cross multiply
    13,589.04x = 20,380.32 × 12,267.12
  4. Step 4: Simplify right side
    13,589.04x = 250,007,831.08
  5. Step 5: Solve for x
    x = 250,007,831.08/13,589.04
  6. Step 6: Final answer
    x = 18,397.76

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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.