Home / 18,318.74-25,280.84-11,601.90

Finding the Fourth Proportional to 18,318.74, 25,280.84 and 11,601.90

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Solution

The fourth proportional to 18,318.74, 25,280.84 and 11,601.90 is: 16,011.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.74 : 25,280.84 = 11,601.90 : x
  2. Step 2: Convert to fraction form
    18,318.74/25,280.84 = 11,601.90/x
  3. Step 3: Cross multiply
    18,318.74x = 25,280.84 × 11,601.90
  4. Step 4: Simplify right side
    18,318.74x = 293,305,777.60
  5. Step 5: Solve for x
    x = 293,305,777.60/18,318.74
  6. Step 6: Final answer
    x = 16,011.24

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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.