Home / 13,690.32-20,535.45-4,331.26

Finding the Fourth Proportional to 13,690.32, 20,535.45 and 4,331.26

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Solution

The fourth proportional to 13,690.32, 20,535.45 and 4,331.26 is: 6,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.32 : 20,535.45 = 4,331.26 : x
  2. Step 2: Convert to fraction form
    13,690.32/20,535.45 = 4,331.26/x
  3. Step 3: Cross multiply
    13,690.32x = 20,535.45 × 4,331.26
  4. Step 4: Simplify right side
    13,690.32x = 88,944,373.17
  5. Step 5: Solve for x
    x = 88,944,373.17/13,690.32
  6. Step 6: Final answer
    x = 6,496.88

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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.