Home / 10,512.13-15,753.60-5,311.93

Finding the Fourth Proportional to 10,512.13, 15,753.60 and 5,311.93

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Solution

The fourth proportional to 10,512.13, 15,753.60 and 5,311.93 is: 7,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.13 : 15,753.60 = 5,311.93 : x
  2. Step 2: Convert to fraction form
    10,512.13/15,753.60 = 5,311.93/x
  3. Step 3: Cross multiply
    10,512.13x = 15,753.60 × 5,311.93
  4. Step 4: Simplify right side
    10,512.13x = 83,682,020.45
  5. Step 5: Solve for x
    x = 83,682,020.45/10,512.13
  6. Step 6: Final answer
    x = 7,960.52

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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.