Home / 13,841.40-20,729.70-8,592.60

Finding the Fourth Proportional to 13,841.40, 20,729.70 and 8,592.60

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Solution

The fourth proportional to 13,841.40, 20,729.70 and 8,592.60 is: 12,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.40 : 20,729.70 = 8,592.60 : x
  2. Step 2: Convert to fraction form
    13,841.40/20,729.70 = 8,592.60/x
  3. Step 3: Cross multiply
    13,841.40x = 20,729.70 × 8,592.60
  4. Step 4: Simplify right side
    13,841.40x = 178,122,020.22
  5. Step 5: Solve for x
    x = 178,122,020.22/13,841.40
  6. Step 6: Final answer
    x = 12,868.79

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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.