Home / 13,538.10-20,306.34-4,177.74

Finding the Fourth Proportional to 13,538.10, 20,306.34 and 4,177.74

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Solution

The fourth proportional to 13,538.10, 20,306.34 and 4,177.74 is: 6,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.10 : 20,306.34 = 4,177.74 : x
  2. Step 2: Convert to fraction form
    13,538.10/20,306.34 = 4,177.74/x
  3. Step 3: Cross multiply
    13,538.10x = 20,306.34 × 4,177.74
  4. Step 4: Simplify right side
    13,538.10x = 84,834,608.87
  5. Step 5: Solve for x
    x = 84,834,608.87/13,538.10
  6. Step 6: Final answer
    x = 6,266.36

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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.