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Finding the Fourth Proportional to 8,500.24, 12,750.36 and 2,656.90

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Solution

The fourth proportional to 8,500.24, 12,750.36 and 2,656.90 is: 3,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.24 : 12,750.36 = 2,656.90 : x
  2. Step 2: Convert to fraction form
    8,500.24/12,750.36 = 2,656.90/x
  3. Step 3: Cross multiply
    8,500.24x = 12,750.36 × 2,656.90
  4. Step 4: Simplify right side
    8,500.24x = 33,876,431.48
  5. Step 5: Solve for x
    x = 33,876,431.48/8,500.24
  6. Step 6: Final answer
    x = 3,985.35

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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.