Home / 9,402.05-12,974.38-5,424.44

Finding the Fourth Proportional to 9,402.05, 12,974.38 and 5,424.44

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Solution

The fourth proportional to 9,402.05, 12,974.38 and 5,424.44 is: 7,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.05 : 12,974.38 = 5,424.44 : x
  2. Step 2: Convert to fraction form
    9,402.05/12,974.38 = 5,424.44/x
  3. Step 3: Cross multiply
    9,402.05x = 12,974.38 × 5,424.44
  4. Step 4: Simplify right side
    9,402.05x = 70,378,776.89
  5. Step 5: Solve for x
    x = 70,378,776.89/9,402.05
  6. Step 6: Final answer
    x = 7,485.47

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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.