Home / 13,708.29-20,559.85-6,681.25

Finding the Fourth Proportional to 13,708.29, 20,559.85 and 6,681.25

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Solution

The fourth proportional to 13,708.29, 20,559.85 and 6,681.25 is: 10,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.29 : 20,559.85 = 6,681.25 : x
  2. Step 2: Convert to fraction form
    13,708.29/20,559.85 = 6,681.25/x
  3. Step 3: Cross multiply
    13,708.29x = 20,559.85 × 6,681.25
  4. Step 4: Simplify right side
    13,708.29x = 137,365,438.86
  5. Step 5: Solve for x
    x = 137,365,438.86/13,708.29
  6. Step 6: Final answer
    x = 10,020.61

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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.