Home / 8,292.78-12,438.76-3,098.25

Finding the Fourth Proportional to 8,292.78, 12,438.76 and 3,098.25

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Solution

The fourth proportional to 8,292.78, 12,438.76 and 3,098.25 is: 4,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,292.78 : 12,438.76 = 3,098.25 : x
  2. Step 2: Convert to fraction form
    8,292.78/12,438.76 = 3,098.25/x
  3. Step 3: Cross multiply
    8,292.78x = 12,438.76 × 3,098.25
  4. Step 4: Simplify right side
    8,292.78x = 38,538,388.17
  5. Step 5: Solve for x
    x = 38,538,388.17/8,292.78
  6. Step 6: Final answer
    x = 4,647.22

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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.