Home / 12,454.32-18,683.70-4,132.78

Finding the Fourth Proportional to 12,454.32, 18,683.70 and 4,132.78

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Solution

The fourth proportional to 12,454.32, 18,683.70 and 4,132.78 is: 6,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.32 : 18,683.70 = 4,132.78 : x
  2. Step 2: Convert to fraction form
    12,454.32/18,683.70 = 4,132.78/x
  3. Step 3: Cross multiply
    12,454.32x = 18,683.70 × 4,132.78
  4. Step 4: Simplify right side
    12,454.32x = 77,215,621.69
  5. Step 5: Solve for x
    x = 77,215,621.69/12,454.32
  6. Step 6: Final answer
    x = 6,199.91

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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.