Home / 15,658.54-23,485.32-5,128.46

Finding the Fourth Proportional to 15,658.54, 23,485.32 and 5,128.46

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Solution

The fourth proportional to 15,658.54, 23,485.32 and 5,128.46 is: 7,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.54 : 23,485.32 = 5,128.46 : x
  2. Step 2: Convert to fraction form
    15,658.54/23,485.32 = 5,128.46/x
  3. Step 3: Cross multiply
    15,658.54x = 23,485.32 × 5,128.46
  4. Step 4: Simplify right side
    15,658.54x = 120,443,524.21
  5. Step 5: Solve for x
    x = 120,443,524.21/15,658.54
  6. Step 6: Final answer
    x = 7,691.87

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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.