Home / 11,422.23-15,761.94-6,386.86

Finding the Fourth Proportional to 11,422.23, 15,761.94 and 6,386.86

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Solution

The fourth proportional to 11,422.23, 15,761.94 and 6,386.86 is: 8,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.23 : 15,761.94 = 6,386.86 : x
  2. Step 2: Convert to fraction form
    11,422.23/15,761.94 = 6,386.86/x
  3. Step 3: Cross multiply
    11,422.23x = 15,761.94 × 6,386.86
  4. Step 4: Simplify right side
    11,422.23x = 100,669,335.79
  5. Step 5: Solve for x
    x = 100,669,335.79/11,422.23
  6. Step 6: Final answer
    x = 8,813.46

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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.