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Finding the Fourth Proportional to 17,763.78, 26,645.67 and 9,001.20

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Solution

The fourth proportional to 17,763.78, 26,645.67 and 9,001.20 is: 13,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,763.78 : 26,645.67 = 9,001.20 : x
  2. Step 2: Convert to fraction form
    17,763.78/26,645.67 = 9,001.20/x
  3. Step 3: Cross multiply
    17,763.78x = 26,645.67 × 9,001.20
  4. Step 4: Simplify right side
    17,763.78x = 239,842,826.57
  5. Step 5: Solve for x
    x = 239,842,826.57/17,763.78
  6. Step 6: Final answer
    x = 13,501.79

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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.