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Finding the Fourth Proportional to 8,635.59, 12,945.48 and 4,192.33

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Solution

The fourth proportional to 8,635.59, 12,945.48 and 4,192.33 is: 6,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.59 : 12,945.48 = 4,192.33 : x
  2. Step 2: Convert to fraction form
    8,635.59/12,945.48 = 4,192.33/x
  3. Step 3: Cross multiply
    8,635.59x = 12,945.48 × 4,192.33
  4. Step 4: Simplify right side
    8,635.59x = 54,271,724.17
  5. Step 5: Solve for x
    x = 54,271,724.17/8,635.59
  6. Step 6: Final answer
    x = 6,284.66

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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.