Home / 9,165.20-13,749.14-3,320.44

Finding the Fourth Proportional to 9,165.20, 13,749.14 and 3,320.44

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Solution

The fourth proportional to 9,165.20, 13,749.14 and 3,320.44 is: 4,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.20 : 13,749.14 = 3,320.44 : x
  2. Step 2: Convert to fraction form
    9,165.20/13,749.14 = 3,320.44/x
  3. Step 3: Cross multiply
    9,165.20x = 13,749.14 × 3,320.44
  4. Step 4: Simplify right side
    9,165.20x = 45,653,194.42
  5. Step 5: Solve for x
    x = 45,653,194.42/9,165.20
  6. Step 6: Final answer
    x = 4,981.15

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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.