Home / 13,542.72-20,297.15-6,521.42

Finding the Fourth Proportional to 13,542.72, 20,297.15 and 6,521.42

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Solution

The fourth proportional to 13,542.72, 20,297.15 and 6,521.42 is: 9,773.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.72 : 20,297.15 = 6,521.42 : x
  2. Step 2: Convert to fraction form
    13,542.72/20,297.15 = 6,521.42/x
  3. Step 3: Cross multiply
    13,542.72x = 20,297.15 × 6,521.42
  4. Step 4: Simplify right side
    13,542.72x = 132,366,207.35
  5. Step 5: Solve for x
    x = 132,366,207.35/13,542.72
  6. Step 6: Final answer
    x = 9,773.98

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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.