Home / 8,743.20-12,061.60-5,204.40

Finding the Fourth Proportional to 8,743.20, 12,061.60 and 5,204.40

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Solution

The fourth proportional to 8,743.20, 12,061.60 and 5,204.40 is: 7,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.20 : 12,061.60 = 5,204.40 : x
  2. Step 2: Convert to fraction form
    8,743.20/12,061.60 = 5,204.40/x
  3. Step 3: Cross multiply
    8,743.20x = 12,061.60 × 5,204.40
  4. Step 4: Simplify right side
    8,743.20x = 62,773,391.04
  5. Step 5: Solve for x
    x = 62,773,391.04/8,743.20
  6. Step 6: Final answer
    x = 7,179.68

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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.