Home / 11,619.12-17,423.33-3,720.18

Finding the Fourth Proportional to 11,619.12, 17,423.33 and 3,720.18

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Solution

The fourth proportional to 11,619.12, 17,423.33 and 3,720.18 is: 5,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.12 : 17,423.33 = 3,720.18 : x
  2. Step 2: Convert to fraction form
    11,619.12/17,423.33 = 3,720.18/x
  3. Step 3: Cross multiply
    11,619.12x = 17,423.33 × 3,720.18
  4. Step 4: Simplify right side
    11,619.12x = 64,817,882.99
  5. Step 5: Solve for x
    x = 64,817,882.99/11,619.12
  6. Step 6: Final answer
    x = 5,578.55

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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.