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Finding the Fourth Proportional to 8,803.98, 12,136.92 and 6,281.78

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Solution

The fourth proportional to 8,803.98, 12,136.92 and 6,281.78 is: 8,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.98 : 12,136.92 = 6,281.78 : x
  2. Step 2: Convert to fraction form
    8,803.98/12,136.92 = 6,281.78/x
  3. Step 3: Cross multiply
    8,803.98x = 12,136.92 × 6,281.78
  4. Step 4: Simplify right side
    8,803.98x = 76,241,461.32
  5. Step 5: Solve for x
    x = 76,241,461.32/8,803.98
  6. Step 6: Final answer
    x = 8,659.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.