Home / 13,540.14-20,319.12-4,775.04

Finding the Fourth Proportional to 13,540.14, 20,319.12 and 4,775.04

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Solution

The fourth proportional to 13,540.14, 20,319.12 and 4,775.04 is: 7,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.14 : 20,319.12 = 4,775.04 : x
  2. Step 2: Convert to fraction form
    13,540.14/20,319.12 = 4,775.04/x
  3. Step 3: Cross multiply
    13,540.14x = 20,319.12 × 4,775.04
  4. Step 4: Simplify right side
    13,540.14x = 97,024,610.76
  5. Step 5: Solve for x
    x = 97,024,610.76/13,540.14
  6. Step 6: Final answer
    x = 7,165.70

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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.