Home / 18,268.08-25,209.45-10,311.05

Finding the Fourth Proportional to 18,268.08, 25,209.45 and 10,311.05

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Solution

The fourth proportional to 18,268.08, 25,209.45 and 10,311.05 is: 14,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.08 : 25,209.45 = 10,311.05 : x
  2. Step 2: Convert to fraction form
    18,268.08/25,209.45 = 10,311.05/x
  3. Step 3: Cross multiply
    18,268.08x = 25,209.45 × 10,311.05
  4. Step 4: Simplify right side
    18,268.08x = 259,935,773.38
  5. Step 5: Solve for x
    x = 259,935,773.38/18,268.08
  6. Step 6: Final answer
    x = 14,228.96

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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.