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Finding the Fourth Proportional to 8,548.68, 12,805.98 and 5,618.10

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Solution

The fourth proportional to 8,548.68, 12,805.98 and 5,618.10 is: 8,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.68 : 12,805.98 = 5,618.10 : x
  2. Step 2: Convert to fraction form
    8,548.68/12,805.98 = 5,618.10/x
  3. Step 3: Cross multiply
    8,548.68x = 12,805.98 × 5,618.10
  4. Step 4: Simplify right side
    8,548.68x = 71,945,276.24
  5. Step 5: Solve for x
    x = 71,945,276.24/8,548.68
  6. Step 6: Final answer
    x = 8,415.95

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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.