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Finding the Fourth Proportional to 8,600.84, 12,901.26 and 6,880.40

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Solution

The fourth proportional to 8,600.84, 12,901.26 and 6,880.40 is: 10,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.84 : 12,901.26 = 6,880.40 : x
  2. Step 2: Convert to fraction form
    8,600.84/12,901.26 = 6,880.40/x
  3. Step 3: Cross multiply
    8,600.84x = 12,901.26 × 6,880.40
  4. Step 4: Simplify right side
    8,600.84x = 88,765,829.30
  5. Step 5: Solve for x
    x = 88,765,829.30/8,600.84
  6. Step 6: Final answer
    x = 10,320.60

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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.