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Finding the Fourth Proportional to 8,656.52, 12,984.78 and 7,010.60

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Solution

The fourth proportional to 8,656.52, 12,984.78 and 7,010.60 is: 10,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.52 : 12,984.78 = 7,010.60 : x
  2. Step 2: Convert to fraction form
    8,656.52/12,984.78 = 7,010.60/x
  3. Step 3: Cross multiply
    8,656.52x = 12,984.78 × 7,010.60
  4. Step 4: Simplify right side
    8,656.52x = 91,031,098.67
  5. Step 5: Solve for x
    x = 91,031,098.67/8,656.52
  6. Step 6: Final answer
    x = 10,515.90

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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.