Home / 8,371.42-12,557.12-3,437.60

Finding the Fourth Proportional to 8,371.42, 12,557.12 and 3,437.60

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Solution

The fourth proportional to 8,371.42, 12,557.12 and 3,437.60 is: 5,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.42 : 12,557.12 = 3,437.60 : x
  2. Step 2: Convert to fraction form
    8,371.42/12,557.12 = 3,437.60/x
  3. Step 3: Cross multiply
    8,371.42x = 12,557.12 × 3,437.60
  4. Step 4: Simplify right side
    8,371.42x = 43,166,355.71
  5. Step 5: Solve for x
    x = 43,166,355.71/8,371.42
  6. Step 6: Final answer
    x = 5,156.40

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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.