Home / 15,719.66-23,585.79-5,725.10

Finding the Fourth Proportional to 15,719.66, 23,585.79 and 5,725.10

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Solution

The fourth proportional to 15,719.66, 23,585.79 and 5,725.10 is: 8,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.66 : 23,585.79 = 5,725.10 : x
  2. Step 2: Convert to fraction form
    15,719.66/23,585.79 = 5,725.10/x
  3. Step 3: Cross multiply
    15,719.66x = 23,585.79 × 5,725.10
  4. Step 4: Simplify right side
    15,719.66x = 135,031,109.09
  5. Step 5: Solve for x
    x = 135,031,109.09/15,719.66
  6. Step 6: Final answer
    x = 8,589.95

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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.