Home / 11,112.66-15,339.33-6,398.82

Finding the Fourth Proportional to 11,112.66, 15,339.33 and 6,398.82

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Solution

The fourth proportional to 11,112.66, 15,339.33 and 6,398.82 is: 8,832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.66 : 15,339.33 = 6,398.82 : x
  2. Step 2: Convert to fraction form
    11,112.66/15,339.33 = 6,398.82/x
  3. Step 3: Cross multiply
    11,112.66x = 15,339.33 × 6,398.82
  4. Step 4: Simplify right side
    11,112.66x = 98,153,611.59
  5. Step 5: Solve for x
    x = 98,153,611.59/11,112.66
  6. Step 6: Final answer
    x = 8,832.59

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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.