Home / 17,275.08-25,912.89-5,428.47

Finding the Fourth Proportional to 17,275.08, 25,912.89 and 5,428.47

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Solution

The fourth proportional to 17,275.08, 25,912.89 and 5,428.47 is: 8,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,275.08 : 25,912.89 = 5,428.47 : x
  2. Step 2: Convert to fraction form
    17,275.08/25,912.89 = 5,428.47/x
  3. Step 3: Cross multiply
    17,275.08x = 25,912.89 × 5,428.47
  4. Step 4: Simplify right side
    17,275.08x = 140,667,345.98
  5. Step 5: Solve for x
    x = 140,667,345.98/17,275.08
  6. Step 6: Final answer
    x = 8,142.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.