Home / 10,089.30-15,133.95-5,423.70

Finding the Fourth Proportional to 10,089.30, 15,133.95 and 5,423.70

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Solution

The fourth proportional to 10,089.30, 15,133.95 and 5,423.70 is: 8,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.30 : 15,133.95 = 5,423.70 : x
  2. Step 2: Convert to fraction form
    10,089.30/15,133.95 = 5,423.70/x
  3. Step 3: Cross multiply
    10,089.30x = 15,133.95 × 5,423.70
  4. Step 4: Simplify right side
    10,089.30x = 82,082,004.62
  5. Step 5: Solve for x
    x = 82,082,004.62/10,089.30
  6. Step 6: Final answer
    x = 8,135.55

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Similar ratio
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1.5x scale

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.