Home / 15,124.46-20,871.27-8,409.96

Finding the Fourth Proportional to 15,124.46, 20,871.27 and 8,409.96

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Solution

The fourth proportional to 15,124.46, 20,871.27 and 8,409.96 is: 11,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.46 : 20,871.27 = 8,409.96 : x
  2. Step 2: Convert to fraction form
    15,124.46/20,871.27 = 8,409.96/x
  3. Step 3: Cross multiply
    15,124.46x = 20,871.27 × 8,409.96
  4. Step 4: Simplify right side
    15,124.46x = 175,526,545.85
  5. Step 5: Solve for x
    x = 175,526,545.85/15,124.46
  6. Step 6: Final answer
    x = 11,605.48

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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.