Home / 11,463.31-15,820.13-6,427.85

Finding the Fourth Proportional to 11,463.31, 15,820.13 and 6,427.85

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Solution

The fourth proportional to 11,463.31, 15,820.13 and 6,427.85 is: 8,870.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,463.31 : 15,820.13 = 6,427.85 : x
  2. Step 2: Convert to fraction form
    11,463.31/15,820.13 = 6,427.85/x
  3. Step 3: Cross multiply
    11,463.31x = 15,820.13 × 6,427.85
  4. Step 4: Simplify right side
    11,463.31x = 101,689,422.62
  5. Step 5: Solve for x
    x = 101,689,422.62/11,463.31
  6. Step 6: Final answer
    x = 8,870.86

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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.