Home / 8,371.98-12,557.99-3,438.15

Finding the Fourth Proportional to 8,371.98, 12,557.99 and 3,438.15

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Solution

The fourth proportional to 8,371.98, 12,557.99 and 3,438.15 is: 5,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.98 : 12,557.99 = 3,438.15 : x
  2. Step 2: Convert to fraction form
    8,371.98/12,557.99 = 3,438.15/x
  3. Step 3: Cross multiply
    8,371.98x = 12,557.99 × 3,438.15
  4. Step 4: Simplify right side
    8,371.98x = 43,176,253.32
  5. Step 5: Solve for x
    x = 43,176,253.32/8,371.98
  6. Step 6: Final answer
    x = 5,157.23

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.