Home / 12,998.18-17,944.12-9,012.38

Finding the Fourth Proportional to 12,998.18, 17,944.12 and 9,012.38

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Solution

The fourth proportional to 12,998.18, 17,944.12 and 9,012.38 is: 12,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.18 : 17,944.12 = 9,012.38 : x
  2. Step 2: Convert to fraction form
    12,998.18/17,944.12 = 9,012.38/x
  3. Step 3: Cross multiply
    12,998.18x = 17,944.12 × 9,012.38
  4. Step 4: Simplify right side
    12,998.18x = 161,719,228.21
  5. Step 5: Solve for x
    x = 161,719,228.21/12,998.18
  6. Step 6: Final answer
    x = 12,441.68

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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.