Home / 12,452.52-18,678.75-5,785.37

Finding the Fourth Proportional to 12,452.52, 18,678.75 and 5,785.37

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Solution

The fourth proportional to 12,452.52, 18,678.75 and 5,785.37 is: 8,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.52 : 18,678.75 = 5,785.37 : x
  2. Step 2: Convert to fraction form
    12,452.52/18,678.75 = 5,785.37/x
  3. Step 3: Cross multiply
    12,452.52x = 18,678.75 × 5,785.37
  4. Step 4: Simplify right side
    12,452.52x = 108,063,479.89
  5. Step 5: Solve for x
    x = 108,063,479.89/12,452.52
  6. Step 6: Final answer
    x = 8,678.04

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1.5x scale

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.