Home / 10,087.44-15,145.20-5,160.48

Finding the Fourth Proportional to 10,087.44, 15,145.20 and 5,160.48

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Solution

The fourth proportional to 10,087.44, 15,145.20 and 5,160.48 is: 7,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.44 : 15,145.20 = 5,160.48 : x
  2. Step 2: Convert to fraction form
    10,087.44/15,145.20 = 5,160.48/x
  3. Step 3: Cross multiply
    10,087.44x = 15,145.20 × 5,160.48
  4. Step 4: Simplify right side
    10,087.44x = 78,156,501.70
  5. Step 5: Solve for x
    x = 78,156,501.70/10,087.44
  6. Step 6: Final answer
    x = 7,747.90

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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.