Home / 9,007.18-12,402.38-8,162.38

Finding the Fourth Proportional to 9,007.18, 12,402.38 and 8,162.38

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Solution

The fourth proportional to 9,007.18, 12,402.38 and 8,162.38 is: 11,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.18 : 12,402.38 = 8,162.38 : x
  2. Step 2: Convert to fraction form
    9,007.18/12,402.38 = 8,162.38/x
  3. Step 3: Cross multiply
    9,007.18x = 12,402.38 × 8,162.38
  4. Step 4: Simplify right side
    9,007.18x = 101,232,938.46
  5. Step 5: Solve for x
    x = 101,232,938.46/9,007.18
  6. Step 6: Final answer
    x = 11,239.14

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Half scale
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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.