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Finding the Fourth Proportional to 8,480.59, 12,710.42 and 6,148.60

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Solution

The fourth proportional to 8,480.59, 12,710.42 and 6,148.60 is: 9,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.59 : 12,710.42 = 6,148.60 : x
  2. Step 2: Convert to fraction form
    8,480.59/12,710.42 = 6,148.60/x
  3. Step 3: Cross multiply
    8,480.59x = 12,710.42 × 6,148.60
  4. Step 4: Simplify right side
    8,480.59x = 78,151,248.95
  5. Step 5: Solve for x
    x = 78,151,248.95/8,480.59
  6. Step 6: Final answer
    x = 9,215.31

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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.