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Finding the Fourth Proportional to 8,761.50, 12,076.46 and 6,210.12

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Solution

The fourth proportional to 8,761.50, 12,076.46 and 6,210.12 is: 8,559.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.50 : 12,076.46 = 6,210.12 : x
  2. Step 2: Convert to fraction form
    8,761.50/12,076.46 = 6,210.12/x
  3. Step 3: Cross multiply
    8,761.50x = 12,076.46 × 6,210.12
  4. Step 4: Simplify right side
    8,761.50x = 74,996,265.78
  5. Step 5: Solve for x
    x = 74,996,265.78/8,761.50
  6. Step 6: Final answer
    x = 8,559.75

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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.