Home / 15,997.20-22,075.70-9,191.04

Finding the Fourth Proportional to 15,997.20, 22,075.70 and 9,191.04

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Solution

The fourth proportional to 15,997.20, 22,075.70 and 9,191.04 is: 12,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.20 : 22,075.70 = 9,191.04 : x
  2. Step 2: Convert to fraction form
    15,997.20/22,075.70 = 9,191.04/x
  3. Step 3: Cross multiply
    15,997.20x = 22,075.70 × 9,191.04
  4. Step 4: Simplify right side
    15,997.20x = 202,898,641.73
  5. Step 5: Solve for x
    x = 202,898,641.73/15,997.20
  6. Step 6: Final answer
    x = 12,683.38

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Half scale
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Double scale
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Similar ratio
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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.