Home / 8,935.62-12,331.38-5,396.76

Finding the Fourth Proportional to 8,935.62, 12,331.38 and 5,396.76

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Solution

The fourth proportional to 8,935.62, 12,331.38 and 5,396.76 is: 7,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.62 : 12,331.38 = 5,396.76 : x
  2. Step 2: Convert to fraction form
    8,935.62/12,331.38 = 5,396.76/x
  3. Step 3: Cross multiply
    8,935.62x = 12,331.38 × 5,396.76
  4. Step 4: Simplify right side
    8,935.62x = 66,549,498.33
  5. Step 5: Solve for x
    x = 66,549,498.33/8,935.62
  6. Step 6: Final answer
    x = 7,447.66

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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.