Home / 8,003.60-12,005.45-5,247.71

Finding the Fourth Proportional to 8,003.60, 12,005.45 and 5,247.71

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Solution

The fourth proportional to 8,003.60, 12,005.45 and 5,247.71 is: 7,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.60 : 12,005.45 = 5,247.71 : x
  2. Step 2: Convert to fraction form
    8,003.60/12,005.45 = 5,247.71/x
  3. Step 3: Cross multiply
    8,003.60x = 12,005.45 × 5,247.71
  4. Step 4: Simplify right side
    8,003.60x = 63,001,120.02
  5. Step 5: Solve for x
    x = 63,001,120.02/8,003.60
  6. Step 6: Final answer
    x = 7,871.60

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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.