Home / 15,628.68-23,438.16-5,238

Finding the Fourth Proportional to 15,628.68, 23,438.16 and 5,238

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Solution

The fourth proportional to 15,628.68, 23,438.16 and 5,238 is: 7,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.68 : 23,438.16 = 5,238 : x
  2. Step 2: Convert to fraction form
    15,628.68/23,438.16 = 5,238/x
  3. Step 3: Cross multiply
    15,628.68x = 23,438.16 × 5,238
  4. Step 4: Simplify right side
    15,628.68x = 122,769,082.08
  5. Step 5: Solve for x
    x = 122,769,082.08/15,628.68
  6. Step 6: Final answer
    x = 7,855.37

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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.