Home / 8,431.36-12,648.48-3,753.04

Finding the Fourth Proportional to 8,431.36, 12,648.48 and 3,753.04

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Solution

The fourth proportional to 8,431.36, 12,648.48 and 3,753.04 is: 5,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.36 : 12,648.48 = 3,753.04 : x
  2. Step 2: Convert to fraction form
    8,431.36/12,648.48 = 3,753.04/x
  3. Step 3: Cross multiply
    8,431.36x = 12,648.48 × 3,753.04
  4. Step 4: Simplify right side
    8,431.36x = 47,470,251.38
  5. Step 5: Solve for x
    x = 47,470,251.38/8,431.36
  6. Step 6: Final answer
    x = 5,630.20

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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.