Home / 9,520.38-13,138.54-5,271.44

Finding the Fourth Proportional to 9,520.38, 13,138.54 and 5,271.44

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Solution

The fourth proportional to 9,520.38, 13,138.54 and 5,271.44 is: 7,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.38 : 13,138.54 = 5,271.44 : x
  2. Step 2: Convert to fraction form
    9,520.38/13,138.54 = 5,271.44/x
  3. Step 3: Cross multiply
    9,520.38x = 13,138.54 × 5,271.44
  4. Step 4: Simplify right side
    9,520.38x = 69,259,044.97
  5. Step 5: Solve for x
    x = 69,259,044.97/9,520.38
  6. Step 6: Final answer
    x = 7,274.82

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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.