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Finding the Fourth Proportional to 8,983.84, 12,394.20 and 6,625.12

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Solution

The fourth proportional to 8,983.84, 12,394.20 and 6,625.12 is: 9,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.84 : 12,394.20 = 6,625.12 : x
  2. Step 2: Convert to fraction form
    8,983.84/12,394.20 = 6,625.12/x
  3. Step 3: Cross multiply
    8,983.84x = 12,394.20 × 6,625.12
  4. Step 4: Simplify right side
    8,983.84x = 82,113,062.30
  5. Step 5: Solve for x
    x = 82,113,062.30/8,983.84
  6. Step 6: Final answer
    x = 9,140.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.