Home / 10,138.98-15,190.20-9,529.02

Finding the Fourth Proportional to 10,138.98, 15,190.20 and 9,529.02

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Solution

The fourth proportional to 10,138.98, 15,190.20 and 9,529.02 is: 14,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.98 : 15,190.20 = 9,529.02 : x
  2. Step 2: Convert to fraction form
    10,138.98/15,190.20 = 9,529.02/x
  3. Step 3: Cross multiply
    10,138.98x = 15,190.20 × 9,529.02
  4. Step 4: Simplify right side
    10,138.98x = 144,747,719.60
  5. Step 5: Solve for x
    x = 144,747,719.60/10,138.98
  6. Step 6: Final answer
    x = 14,276.36

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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.