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Finding the Fourth Proportional to 8,839.80, 13,281.30 and 6,652.80

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Solution

The fourth proportional to 8,839.80, 13,281.30 and 6,652.80 is: 9,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.80 : 13,281.30 = 6,652.80 : x
  2. Step 2: Convert to fraction form
    8,839.80/13,281.30 = 6,652.80/x
  3. Step 3: Cross multiply
    8,839.80x = 13,281.30 × 6,652.80
  4. Step 4: Simplify right side
    8,839.80x = 88,357,832.64
  5. Step 5: Solve for x
    x = 88,357,832.64/8,839.80
  6. Step 6: Final answer
    x = 9,995.46

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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.