Home / 10,321.13-15,487.88-4,477.75

Finding the Fourth Proportional to 10,321.13, 15,487.88 and 4,477.75

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Solution

The fourth proportional to 10,321.13, 15,487.88 and 4,477.75 is: 6,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.13 : 15,487.88 = 4,477.75 : x
  2. Step 2: Convert to fraction form
    10,321.13/15,487.88 = 4,477.75/x
  3. Step 3: Cross multiply
    10,321.13x = 15,487.88 × 4,477.75
  4. Step 4: Simplify right side
    10,321.13x = 69,350,793.56
  5. Step 5: Solve for x
    x = 69,350,793.56/10,321.13
  6. Step 6: Final answer
    x = 6,719.30

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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.