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Finding the Fourth Proportional to 8,119.19, 12,177.99 and 5,503.50

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Solution

The fourth proportional to 8,119.19, 12,177.99 and 5,503.50 is: 8,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.19 : 12,177.99 = 5,503.50 : x
  2. Step 2: Convert to fraction form
    8,119.19/12,177.99 = 5,503.50/x
  3. Step 3: Cross multiply
    8,119.19x = 12,177.99 × 5,503.50
  4. Step 4: Simplify right side
    8,119.19x = 67,021,612.17
  5. Step 5: Solve for x
    x = 67,021,612.17/8,119.19
  6. Step 6: Final answer
    x = 8,254.72

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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.