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Finding the Fourth Proportional to 8,671.84, 12,988.08 and 6,193.12

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Solution

The fourth proportional to 8,671.84, 12,988.08 and 6,193.12 is: 9,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.84 : 12,988.08 = 6,193.12 : x
  2. Step 2: Convert to fraction form
    8,671.84/12,988.08 = 6,193.12/x
  3. Step 3: Cross multiply
    8,671.84x = 12,988.08 × 6,193.12
  4. Step 4: Simplify right side
    8,671.84x = 80,436,738.01
  5. Step 5: Solve for x
    x = 80,436,738.01/8,671.84
  6. Step 6: Final answer
    x = 9,275.63

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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.