Home / 13,747.25-20,611.61-6,347.63

Finding the Fourth Proportional to 13,747.25, 20,611.61 and 6,347.63

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Solution

The fourth proportional to 13,747.25, 20,611.61 and 6,347.63 is: 9,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.25 : 20,611.61 = 6,347.63 : x
  2. Step 2: Convert to fraction form
    13,747.25/20,611.61 = 6,347.63/x
  3. Step 3: Cross multiply
    13,747.25x = 20,611.61 × 6,347.63
  4. Step 4: Simplify right side
    13,747.25x = 130,834,770.93
  5. Step 5: Solve for x
    x = 130,834,770.93/13,747.25
  6. Step 6: Final answer
    x = 9,517.16

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1.5x scale

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.