Home / 13,508.64-18,632.82-11,737.20

Finding the Fourth Proportional to 13,508.64, 18,632.82 and 11,737.20

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Solution

The fourth proportional to 13,508.64, 18,632.82 and 11,737.20 is: 16,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.64 : 18,632.82 = 11,737.20 : x
  2. Step 2: Convert to fraction form
    13,508.64/18,632.82 = 11,737.20/x
  3. Step 3: Cross multiply
    13,508.64x = 18,632.82 × 11,737.20
  4. Step 4: Simplify right side
    13,508.64x = 218,697,134.90
  5. Step 5: Solve for x
    x = 218,697,134.90/13,508.64
  6. Step 6: Final answer
    x = 16,189.43

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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.