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Finding the Fourth Proportional to 13,044.75, 18,001.76 and 7,455.87

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Solution

The fourth proportional to 13,044.75, 18,001.76 and 7,455.87 is: 10,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,044.75 : 18,001.76 = 7,455.87 : x
  2. Step 2: Convert to fraction form
    13,044.75/18,001.76 = 7,455.87/x
  3. Step 3: Cross multiply
    13,044.75x = 18,001.76 × 7,455.87
  4. Step 4: Simplify right side
    13,044.75x = 134,218,745.05
  5. Step 5: Solve for x
    x = 134,218,745.05/13,044.75
  6. Step 6: Final answer
    x = 10,289.10

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Double 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.