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Finding the Fourth Proportional to 8,838.50, 12,194.07 and 5,480.10

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Solution

The fourth proportional to 8,838.50, 12,194.07 and 5,480.10 is: 7,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.50 : 12,194.07 = 5,480.10 : x
  2. Step 2: Convert to fraction form
    8,838.50/12,194.07 = 5,480.10/x
  3. Step 3: Cross multiply
    8,838.50x = 12,194.07 × 5,480.10
  4. Step 4: Simplify right side
    8,838.50x = 66,824,723.01
  5. Step 5: Solve for x
    x = 66,824,723.01/8,838.50
  6. Step 6: Final answer
    x = 7,560.64

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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.