Home / 18,225.52-25,155.90-11,867.98

Finding the Fourth Proportional to 18,225.52, 25,155.90 and 11,867.98

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Solution

The fourth proportional to 18,225.52, 25,155.90 and 11,867.98 is: 16,380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.52 : 25,155.90 = 11,867.98 : x
  2. Step 2: Convert to fraction form
    18,225.52/25,155.90 = 11,867.98/x
  3. Step 3: Cross multiply
    18,225.52x = 25,155.90 × 11,867.98
  4. Step 4: Simplify right side
    18,225.52x = 298,549,718.08
  5. Step 5: Solve for x
    x = 298,549,718.08/18,225.52
  6. Step 6: Final answer
    x = 16,380.86

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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.