Home / 11,207.68-15,469.52-6,491.36

Finding the Fourth Proportional to 11,207.68, 15,469.52 and 6,491.36

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Solution

The fourth proportional to 11,207.68, 15,469.52 and 6,491.36 is: 8,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.68 : 15,469.52 = 6,491.36 : x
  2. Step 2: Convert to fraction form
    11,207.68/15,469.52 = 6,491.36/x
  3. Step 3: Cross multiply
    11,207.68x = 15,469.52 × 6,491.36
  4. Step 4: Simplify right side
    11,207.68x = 100,418,223.35
  5. Step 5: Solve for x
    x = 100,418,223.35/11,207.68
  6. Step 6: Final answer
    x = 8,959.77

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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.