Home / 18,439.15-25,445.79-10,480.85

Finding the Fourth Proportional to 18,439.15, 25,445.79 and 10,480.85

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Solution

The fourth proportional to 18,439.15, 25,445.79 and 10,480.85 is: 14,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.15 : 25,445.79 = 10,480.85 : x
  2. Step 2: Convert to fraction form
    18,439.15/25,445.79 = 10,480.85/x
  3. Step 3: Cross multiply
    18,439.15x = 25,445.79 × 10,480.85
  4. Step 4: Simplify right side
    18,439.15x = 266,693,571.74
  5. Step 5: Solve for x
    x = 266,693,571.74/18,439.15
  6. Step 6: Final answer
    x = 14,463.44

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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.