Home / 13,758.38-20,637.96-3,370.12

Finding the Fourth Proportional to 13,758.38, 20,637.96 and 3,370.12

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Solution

The fourth proportional to 13,758.38, 20,637.96 and 3,370.12 is: 5,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.38 : 20,637.96 = 3,370.12 : x
  2. Step 2: Convert to fraction form
    13,758.38/20,637.96 = 3,370.12/x
  3. Step 3: Cross multiply
    13,758.38x = 20,637.96 × 3,370.12
  4. Step 4: Simplify right side
    13,758.38x = 69,552,401.76
  5. Step 5: Solve for x
    x = 69,552,401.76/13,758.38
  6. Step 6: Final answer
    x = 5,055.28

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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.