Home / 13,631.60-20,451.32-4,867.14

Finding the Fourth Proportional to 13,631.60, 20,451.32 and 4,867.14

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Solution

The fourth proportional to 13,631.60, 20,451.32 and 4,867.14 is: 7,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.60 : 20,451.32 = 4,867.14 : x
  2. Step 2: Convert to fraction form
    13,631.60/20,451.32 = 4,867.14/x
  3. Step 3: Cross multiply
    13,631.60x = 20,451.32 × 4,867.14
  4. Step 4: Simplify right side
    13,631.60x = 99,539,437.62
  5. Step 5: Solve for x
    x = 99,539,437.62/13,631.60
  6. Step 6: Final answer
    x = 7,302.11

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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.