Home / 25,947.11-38,926.13-8,415.56

Finding the Fourth Proportional to 25,947.11, 38,926.13 and 8,415.56

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Solution

The fourth proportional to 25,947.11, 38,926.13 and 8,415.56 is: 12,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.11 : 38,926.13 = 8,415.56 : x
  2. Step 2: Convert to fraction form
    25,947.11/38,926.13 = 8,415.56/x
  3. Step 3: Cross multiply
    25,947.11x = 38,926.13 × 8,415.56
  4. Step 4: Simplify right side
    25,947.11x = 327,585,237.82
  5. Step 5: Solve for x
    x = 327,585,237.82/25,947.11
  6. Step 6: Final answer
    x = 12,625.11

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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.