Home / 13,833.21-20,755.05-8,290.53

Finding the Fourth Proportional to 13,833.21, 20,755.05 and 8,290.53

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Solution

The fourth proportional to 13,833.21, 20,755.05 and 8,290.53 is: 12,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.21 : 20,755.05 = 8,290.53 : x
  2. Step 2: Convert to fraction form
    13,833.21/20,755.05 = 8,290.53/x
  3. Step 3: Cross multiply
    13,833.21x = 20,755.05 × 8,290.53
  4. Step 4: Simplify right side
    13,833.21x = 172,070,395.77
  5. Step 5: Solve for x
    x = 172,070,395.77/13,833.21
  6. Step 6: Final answer
    x = 12,438.94

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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.