Home / 10,147.64-15,221.50-3,127.60

Finding the Fourth Proportional to 10,147.64, 15,221.50 and 3,127.60

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Solution

The fourth proportional to 10,147.64, 15,221.50 and 3,127.60 is: 4,691.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.64 : 15,221.50 = 3,127.60 : x
  2. Step 2: Convert to fraction form
    10,147.64/15,221.50 = 3,127.60/x
  3. Step 3: Cross multiply
    10,147.64x = 15,221.50 × 3,127.60
  4. Step 4: Simplify right side
    10,147.64x = 47,606,763.40
  5. Step 5: Solve for x
    x = 47,606,763.40/10,147.64
  6. Step 6: Final answer
    x = 4,691.41

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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.