Home / 13,726.90-20,595.48-5,412.72

Finding the Fourth Proportional to 13,726.90, 20,595.48 and 5,412.72

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Solution

The fourth proportional to 13,726.90, 20,595.48 and 5,412.72 is: 8,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.90 : 20,595.48 = 5,412.72 : x
  2. Step 2: Convert to fraction form
    13,726.90/20,595.48 = 5,412.72/x
  3. Step 3: Cross multiply
    13,726.90x = 20,595.48 × 5,412.72
  4. Step 4: Simplify right side
    13,726.90x = 111,477,469.96
  5. Step 5: Solve for x
    x = 111,477,469.96/13,726.90
  6. Step 6: Final answer
    x = 8,121.09

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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.