Home / 11,217.58-15,479.52-6,738.68

Finding the Fourth Proportional to 11,217.58, 15,479.52 and 6,738.68

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Solution

The fourth proportional to 11,217.58, 15,479.52 and 6,738.68 is: 9,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.58 : 15,479.52 = 6,738.68 : x
  2. Step 2: Convert to fraction form
    11,217.58/15,479.52 = 6,738.68/x
  3. Step 3: Cross multiply
    11,217.58x = 15,479.52 × 6,738.68
  4. Step 4: Simplify right side
    11,217.58x = 104,311,531.83
  5. Step 5: Solve for x
    x = 104,311,531.83/11,217.58
  6. Step 6: Final answer
    x = 9,298.93

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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.