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Finding the Fourth Proportional to 8,656.07, 12,984.11 and 4,955.72

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Solution

The fourth proportional to 8,656.07, 12,984.11 and 4,955.72 is: 7,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.07 : 12,984.11 = 4,955.72 : x
  2. Step 2: Convert to fraction form
    8,656.07/12,984.11 = 4,955.72/x
  3. Step 3: Cross multiply
    8,656.07x = 12,984.11 × 4,955.72
  4. Step 4: Simplify right side
    8,656.07x = 64,345,613.61
  5. Step 5: Solve for x
    x = 64,345,613.61/8,656.07
  6. Step 6: Final answer
    x = 7,433.58

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Similar ratio
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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.