Home / 13,805.44-20,708.16-3,417.19

Finding the Fourth Proportional to 13,805.44, 20,708.16 and 3,417.19

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Solution

The fourth proportional to 13,805.44, 20,708.16 and 3,417.19 is: 5,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.44 : 20,708.16 = 3,417.19 : x
  2. Step 2: Convert to fraction form
    13,805.44/20,708.16 = 3,417.19/x
  3. Step 3: Cross multiply
    13,805.44x = 20,708.16 × 3,417.19
  4. Step 4: Simplify right side
    13,805.44x = 70,763,652.69
  5. Step 5: Solve for x
    x = 70,763,652.69/13,805.44
  6. Step 6: Final answer
    x = 5,125.78

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Double scale
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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.