Home / 8,618.56-12,937.54-3,428.08

Finding the Fourth Proportional to 8,618.56, 12,937.54 and 3,428.08

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Solution

The fourth proportional to 8,618.56, 12,937.54 and 3,428.08 is: 5,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.56 : 12,937.54 = 3,428.08 : x
  2. Step 2: Convert to fraction form
    8,618.56/12,937.54 = 3,428.08/x
  3. Step 3: Cross multiply
    8,618.56x = 12,937.54 × 3,428.08
  4. Step 4: Simplify right side
    8,618.56x = 44,350,922.12
  5. Step 5: Solve for x
    x = 44,350,922.12/8,618.56
  6. Step 6: Final answer
    x = 5,145.98

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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.