Home / 13,758.32-20,637.48-3,897.68

Finding the Fourth Proportional to 13,758.32, 20,637.48 and 3,897.68

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Solution

The fourth proportional to 13,758.32, 20,637.48 and 3,897.68 is: 5,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.32 : 20,637.48 = 3,897.68 : x
  2. Step 2: Convert to fraction form
    13,758.32/20,637.48 = 3,897.68/x
  3. Step 3: Cross multiply
    13,758.32x = 20,637.48 × 3,897.68
  4. Step 4: Simplify right side
    13,758.32x = 80,438,293.05
  5. Step 5: Solve for x
    x = 80,438,293.05/13,758.32
  6. Step 6: Final answer
    x = 5,846.52

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Similar ratio
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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.