Home / 8,942.08-12,331.48-5,356.47

Finding the Fourth Proportional to 8,942.08, 12,331.48 and 5,356.47

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Solution

The fourth proportional to 8,942.08, 12,331.48 and 5,356.47 is: 7,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.08 : 12,331.48 = 5,356.47 : x
  2. Step 2: Convert to fraction form
    8,942.08/12,331.48 = 5,356.47/x
  3. Step 3: Cross multiply
    8,942.08x = 12,331.48 × 5,356.47
  4. Step 4: Simplify right side
    8,942.08x = 66,053,202.68
  5. Step 5: Solve for x
    x = 66,053,202.68/8,942.08
  6. Step 6: Final answer
    x = 7,386.78

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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.