Home / 12,399.29-18,597.16-4,079.64

Finding the Fourth Proportional to 12,399.29, 18,597.16 and 4,079.64

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Solution

The fourth proportional to 12,399.29, 18,597.16 and 4,079.64 is: 6,118.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.29 : 18,597.16 = 4,079.64 : x
  2. Step 2: Convert to fraction form
    12,399.29/18,597.16 = 4,079.64/x
  3. Step 3: Cross multiply
    12,399.29x = 18,597.16 × 4,079.64
  4. Step 4: Simplify right side
    12,399.29x = 75,869,717.82
  5. Step 5: Solve for x
    x = 75,869,717.82/12,399.29
  6. Step 6: Final answer
    x = 6,118.88

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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.