Home / 10,130.28-15,189.75-3,553.89

Finding the Fourth Proportional to 10,130.28, 15,189.75 and 3,553.89

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Solution

The fourth proportional to 10,130.28, 15,189.75 and 3,553.89 is: 5,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.28 : 15,189.75 = 3,553.89 : x
  2. Step 2: Convert to fraction form
    10,130.28/15,189.75 = 3,553.89/x
  3. Step 3: Cross multiply
    10,130.28x = 15,189.75 × 3,553.89
  4. Step 4: Simplify right side
    10,130.28x = 53,982,700.63
  5. Step 5: Solve for x
    x = 53,982,700.63/10,130.28
  6. Step 6: Final answer
    x = 5,328.85

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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.