Home / 13,885.44-20,836.31-5,126.46

Finding the Fourth Proportional to 13,885.44, 20,836.31 and 5,126.46

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Solution

The fourth proportional to 13,885.44, 20,836.31 and 5,126.46 is: 7,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.44 : 20,836.31 = 5,126.46 : x
  2. Step 2: Convert to fraction form
    13,885.44/20,836.31 = 5,126.46/x
  3. Step 3: Cross multiply
    13,885.44x = 20,836.31 × 5,126.46
  4. Step 4: Simplify right side
    13,885.44x = 106,816,484.13
  5. Step 5: Solve for x
    x = 106,816,484.13/13,885.44
  6. Step 6: Final answer
    x = 7,692.70

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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.