Home / 26,409.18-39,615.21-6,687.90

Finding the Fourth Proportional to 26,409.18, 39,615.21 and 6,687.90

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Solution

The fourth proportional to 26,409.18, 39,615.21 and 6,687.90 is: 10,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,409.18 : 39,615.21 = 6,687.90 : x
  2. Step 2: Convert to fraction form
    26,409.18/39,615.21 = 6,687.90/x
  3. Step 3: Cross multiply
    26,409.18x = 39,615.21 × 6,687.90
  4. Step 4: Simplify right side
    26,409.18x = 264,942,562.96
  5. Step 5: Solve for x
    x = 264,942,562.96/26,409.18
  6. Step 6: Final answer
    x = 10,032.21

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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.