Home / 8,338.31-12,510.96-3,655.90

Finding the Fourth Proportional to 8,338.31, 12,510.96 and 3,655.90

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Solution

The fourth proportional to 8,338.31, 12,510.96 and 3,655.90 is: 5,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.31 : 12,510.96 = 3,655.90 : x
  2. Step 2: Convert to fraction form
    8,338.31/12,510.96 = 3,655.90/x
  3. Step 3: Cross multiply
    8,338.31x = 12,510.96 × 3,655.90
  4. Step 4: Simplify right side
    8,338.31x = 45,738,818.66
  5. Step 5: Solve for x
    x = 45,738,818.66/8,338.31
  6. Step 6: Final answer
    x = 5,485.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.