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Finding the Fourth Proportional to 8,750.76, 12,061.56 and 6,195.21

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Solution

The fourth proportional to 8,750.76, 12,061.56 and 6,195.21 is: 8,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.76 : 12,061.56 = 6,195.21 : x
  2. Step 2: Convert to fraction form
    8,750.76/12,061.56 = 6,195.21/x
  3. Step 3: Cross multiply
    8,750.76x = 12,061.56 × 6,195.21
  4. Step 4: Simplify right side
    8,750.76x = 74,723,897.13
  5. Step 5: Solve for x
    x = 74,723,897.13/8,750.76
  6. Step 6: Final answer
    x = 8,539.13

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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.