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Finding the Fourth Proportional to 17,998.78, 26,998.17 and 9,228.10

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Solution

The fourth proportional to 17,998.78, 26,998.17 and 9,228.10 is: 13,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.78 : 26,998.17 = 9,228.10 : x
  2. Step 2: Convert to fraction form
    17,998.78/26,998.17 = 9,228.10/x
  3. Step 3: Cross multiply
    17,998.78x = 26,998.17 × 9,228.10
  4. Step 4: Simplify right side
    17,998.78x = 249,141,812.58
  5. Step 5: Solve for x
    x = 249,141,812.58/17,998.78
  6. Step 6: Final answer
    x = 13,842.15

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.