Home / 15,878.53-23,819.16-4,191.75

Finding the Fourth Proportional to 15,878.53, 23,819.16 and 4,191.75

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Solution

The fourth proportional to 15,878.53, 23,819.16 and 4,191.75 is: 6,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.53 : 23,819.16 = 4,191.75 : x
  2. Step 2: Convert to fraction form
    15,878.53/23,819.16 = 4,191.75/x
  3. Step 3: Cross multiply
    15,878.53x = 23,819.16 × 4,191.75
  4. Step 4: Simplify right side
    15,878.53x = 99,843,979.65
  5. Step 5: Solve for x
    x = 99,843,979.65/15,878.53
  6. Step 6: Final answer
    x = 6,287.99

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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.