Home / 9,181.80-13,778.84-3,338.40

Finding the Fourth Proportional to 9,181.80, 13,778.84 and 3,338.40

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Solution

The fourth proportional to 9,181.80, 13,778.84 and 3,338.40 is: 5,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.80 : 13,778.84 = 3,338.40 : x
  2. Step 2: Convert to fraction form
    9,181.80/13,778.84 = 3,338.40/x
  3. Step 3: Cross multiply
    9,181.80x = 13,778.84 × 3,338.40
  4. Step 4: Simplify right side
    9,181.80x = 45,999,279.46
  5. Step 5: Solve for x
    x = 45,999,279.46/9,181.80
  6. Step 6: Final answer
    x = 5,009.83

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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.