Home / 9,145.30-13,717.96-2,219.80

Finding the Fourth Proportional to 9,145.30, 13,717.96 and 2,219.80

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Solution

The fourth proportional to 9,145.30, 13,717.96 and 2,219.80 is: 3,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.30 : 13,717.96 = 2,219.80 : x
  2. Step 2: Convert to fraction form
    9,145.30/13,717.96 = 2,219.80/x
  3. Step 3: Cross multiply
    9,145.30x = 13,717.96 × 2,219.80
  4. Step 4: Simplify right side
    9,145.30x = 30,451,127.61
  5. Step 5: Solve for x
    x = 30,451,127.61/9,145.30
  6. Step 6: Final answer
    x = 3,329.70

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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.