Home / 13,002.75-17,943.12-7,337.55

Finding the Fourth Proportional to 13,002.75, 17,943.12 and 7,337.55

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Solution

The fourth proportional to 13,002.75, 17,943.12 and 7,337.55 is: 10,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.75 : 17,943.12 = 7,337.55 : x
  2. Step 2: Convert to fraction form
    13,002.75/17,943.12 = 7,337.55/x
  3. Step 3: Cross multiply
    13,002.75x = 17,943.12 × 7,337.55
  4. Step 4: Simplify right side
    13,002.75x = 131,658,540.16
  5. Step 5: Solve for x
    x = 131,658,540.16/13,002.75
  6. Step 6: Final answer
    x = 10,125.44

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Half scale
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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.