Home / 15,126.27-20,872.66-8,410.82

Finding the Fourth Proportional to 15,126.27, 20,872.66 and 8,410.82

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Solution

The fourth proportional to 15,126.27, 20,872.66 and 8,410.82 is: 11,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.27 : 20,872.66 = 8,410.82 : x
  2. Step 2: Convert to fraction form
    15,126.27/20,872.66 = 8,410.82/x
  3. Step 3: Cross multiply
    15,126.27x = 20,872.66 × 8,410.82
  4. Step 4: Simplify right side
    15,126.27x = 175,556,039.76
  5. Step 5: Solve for x
    x = 175,556,039.76/15,126.27
  6. Step 6: Final answer
    x = 11,606.04

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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.