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Finding the Fourth Proportional to 8,442.84, 12,673.17 and 6,900.60

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Solution

The fourth proportional to 8,442.84, 12,673.17 and 6,900.60 is: 10,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442.84 : 12,673.17 = 6,900.60 : x
  2. Step 2: Convert to fraction form
    8,442.84/12,673.17 = 6,900.60/x
  3. Step 3: Cross multiply
    8,442.84x = 12,673.17 × 6,900.60
  4. Step 4: Simplify right side
    8,442.84x = 87,452,476.90
  5. Step 5: Solve for x
    x = 87,452,476.90/8,442.84
  6. Step 6: Final answer
    x = 10,358.18

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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.