Home / 18,209.13-25,129.08-10,251.65

Finding the Fourth Proportional to 18,209.13, 25,129.08 and 10,251.65

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Solution

The fourth proportional to 18,209.13, 25,129.08 and 10,251.65 is: 14,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.13 : 25,129.08 = 10,251.65 : x
  2. Step 2: Convert to fraction form
    18,209.13/25,129.08 = 10,251.65/x
  3. Step 3: Cross multiply
    18,209.13x = 25,129.08 × 10,251.65
  4. Step 4: Simplify right side
    18,209.13x = 257,614,368.89
  5. Step 5: Solve for x
    x = 257,614,368.89/18,209.13
  6. Step 6: Final answer
    x = 14,147.54

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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.