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Finding the Fourth Proportional to 8,995.25, 12,323.58 and 8,658.63

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Solution

The fourth proportional to 8,995.25, 12,323.58 and 8,658.63 is: 11,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.25 : 12,323.58 = 8,658.63 : x
  2. Step 2: Convert to fraction form
    8,995.25/12,323.58 = 8,658.63/x
  3. Step 3: Cross multiply
    8,995.25x = 12,323.58 × 8,658.63
  4. Step 4: Simplify right side
    8,995.25x = 106,705,287.03
  5. Step 5: Solve for x
    x = 106,705,287.03/8,995.25
  6. Step 6: Final answer
    x = 11,862.40

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Half scale
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Double scale
Find fourth proportional to 8,996.25, 12,324.95 and 8,659.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.