Home / 19,179.16-28,751.70-7,489.72

Finding the Fourth Proportional to 19,179.16, 28,751.70 and 7,489.72

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Solution

The fourth proportional to 19,179.16, 28,751.70 and 7,489.72 is: 11,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.16 : 28,751.70 = 7,489.72 : x
  2. Step 2: Convert to fraction form
    19,179.16/28,751.70 = 7,489.72/x
  3. Step 3: Cross multiply
    19,179.16x = 28,751.70 × 7,489.72
  4. Step 4: Simplify right side
    19,179.16x = 215,342,182.52
  5. Step 5: Solve for x
    x = 215,342,182.52/19,179.16
  6. Step 6: Final answer
    x = 11,227.93

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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.