Home / 15,629.68-23,439.66-5,239

Finding the Fourth Proportional to 15,629.68, 23,439.66 and 5,239

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Solution

The fourth proportional to 15,629.68, 23,439.66 and 5,239 is: 7,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.68 : 23,439.66 = 5,239 : x
  2. Step 2: Convert to fraction form
    15,629.68/23,439.66 = 5,239/x
  3. Step 3: Cross multiply
    15,629.68x = 23,439.66 × 5,239
  4. Step 4: Simplify right side
    15,629.68x = 122,800,378.74
  5. Step 5: Solve for x
    x = 122,800,378.74/15,629.68
  6. Step 6: Final answer
    x = 7,856.87

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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.