Home / 12,403.20-18,608.04-4,612.08

Finding the Fourth Proportional to 12,403.20, 18,608.04 and 4,612.08

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Solution

The fourth proportional to 12,403.20, 18,608.04 and 4,612.08 is: 6,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.20 : 18,608.04 = 4,612.08 : x
  2. Step 2: Convert to fraction form
    12,403.20/18,608.04 = 4,612.08/x
  3. Step 3: Cross multiply
    12,403.20x = 18,608.04 × 4,612.08
  4. Step 4: Simplify right side
    12,403.20x = 85,821,769.12
  5. Step 5: Solve for x
    x = 85,821,769.12/12,403.20
  6. Step 6: Final answer
    x = 6,919.32

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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.