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Finding the Fourth Proportional to 9,018, 13,508.62 and 7,358.04

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Solution

The fourth proportional to 9,018, 13,508.62 and 7,358.04 is: 11,022.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018 : 13,508.62 = 7,358.04 : x
  2. Step 2: Convert to fraction form
    9,018/13,508.62 = 7,358.04/x
  3. Step 3: Cross multiply
    9,018x = 13,508.62 × 7,358.04
  4. Step 4: Simplify right side
    9,018x = 99,396,966.30
  5. Step 5: Solve for x
    x = 99,396,966.30/9,018
  6. Step 6: Final answer
    x = 11,022.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.