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Finding the Fourth Proportional to 8,454.58, 12,655.24 and 5,806.55

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Solution

The fourth proportional to 8,454.58, 12,655.24 and 5,806.55 is: 8,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.58 : 12,655.24 = 5,806.55 : x
  2. Step 2: Convert to fraction form
    8,454.58/12,655.24 = 5,806.55/x
  3. Step 3: Cross multiply
    8,454.58x = 12,655.24 × 5,806.55
  4. Step 4: Simplify right side
    8,454.58x = 73,483,300.94
  5. Step 5: Solve for x
    x = 73,483,300.94/8,454.58
  6. Step 6: Final answer
    x = 8,691.54

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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.