Home / 8,728.75-12,044.46-5,372.11

Finding the Fourth Proportional to 8,728.75, 12,044.46 and 5,372.11

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Solution

The fourth proportional to 8,728.75, 12,044.46 and 5,372.11 is: 7,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.75 : 12,044.46 = 5,372.11 : x
  2. Step 2: Convert to fraction form
    8,728.75/12,044.46 = 5,372.11/x
  3. Step 3: Cross multiply
    8,728.75x = 12,044.46 × 5,372.11
  4. Step 4: Simplify right side
    8,728.75x = 64,704,164.01
  5. Step 5: Solve for x
    x = 64,704,164.01/8,728.75
  6. Step 6: Final answer
    x = 7,412.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.