Home / 11,217.90-15,479.35-6,437.59

Finding the Fourth Proportional to 11,217.90, 15,479.35 and 6,437.59

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Solution

The fourth proportional to 11,217.90, 15,479.35 and 6,437.59 is: 8,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.90 : 15,479.35 = 6,437.59 : x
  2. Step 2: Convert to fraction form
    11,217.90/15,479.35 = 6,437.59/x
  3. Step 3: Cross multiply
    11,217.90x = 15,479.35 × 6,437.59
  4. Step 4: Simplify right side
    11,217.90x = 99,649,708.77
  5. Step 5: Solve for x
    x = 99,649,708.77/11,217.90
  6. Step 6: Final answer
    x = 8,883.10

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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.