Home / 15,214.82-20,995.70-8,499.11

Finding the Fourth Proportional to 15,214.82, 20,995.70 and 8,499.11

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Solution

The fourth proportional to 15,214.82, 20,995.70 and 8,499.11 is: 11,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.82 : 20,995.70 = 8,499.11 : x
  2. Step 2: Convert to fraction form
    15,214.82/20,995.70 = 8,499.11/x
  3. Step 3: Cross multiply
    15,214.82x = 20,995.70 × 8,499.11
  4. Step 4: Simplify right side
    15,214.82x = 178,444,616.35
  5. Step 5: Solve for x
    x = 178,444,616.35/15,214.82
  6. Step 6: Final answer
    x = 11,728.35

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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.