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Finding the Fourth Proportional to 12,399.95, 18,600.02 and 4,608.75

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Solution

The fourth proportional to 12,399.95, 18,600.02 and 4,608.75 is: 6,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.95 : 18,600.02 = 4,608.75 : x
  2. Step 2: Convert to fraction form
    12,399.95/18,600.02 = 4,608.75/x
  3. Step 3: Cross multiply
    12,399.95x = 18,600.02 × 4,608.75
  4. Step 4: Simplify right side
    12,399.95x = 85,722,819.13
  5. Step 5: Solve for x
    x = 85,722,819.13/12,399.95
  6. Step 6: Final answer
    x = 6,913.16

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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.