Home / 13,451.66-20,177.34-3,456.35

Finding the Fourth Proportional to 13,451.66, 20,177.34 and 3,456.35

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Solution

The fourth proportional to 13,451.66, 20,177.34 and 3,456.35 is: 5,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.66 : 20,177.34 = 3,456.35 : x
  2. Step 2: Convert to fraction form
    13,451.66/20,177.34 = 3,456.35/x
  3. Step 3: Cross multiply
    13,451.66x = 20,177.34 × 3,456.35
  4. Step 4: Simplify right side
    13,451.66x = 69,739,848.22
  5. Step 5: Solve for x
    x = 69,739,848.22/13,451.66
  6. Step 6: Final answer
    x = 5,184.48

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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.