Home / 18,268.84-25,209.78-10,311.40

Finding the Fourth Proportional to 18,268.84, 25,209.78 and 10,311.40

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Solution

The fourth proportional to 18,268.84, 25,209.78 and 10,311.40 is: 14,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.84 : 25,209.78 = 10,311.40 : x
  2. Step 2: Convert to fraction form
    18,268.84/25,209.78 = 10,311.40/x
  3. Step 3: Cross multiply
    18,268.84x = 25,209.78 × 10,311.40
  4. Step 4: Simplify right side
    18,268.84x = 259,948,125.49
  5. Step 5: Solve for x
    x = 259,948,125.49/18,268.84
  6. Step 6: Final answer
    x = 14,229.04

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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.