Home / 19,122.47-26,385.92-11,951.54

Finding the Fourth Proportional to 19,122.47, 26,385.92 and 11,951.54

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Solution

The fourth proportional to 19,122.47, 26,385.92 and 11,951.54 is: 16,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.47 : 26,385.92 = 11,951.54 : x
  2. Step 2: Convert to fraction form
    19,122.47/26,385.92 = 11,951.54/x
  3. Step 3: Cross multiply
    19,122.47x = 26,385.92 × 11,951.54
  4. Step 4: Simplify right side
    19,122.47x = 315,352,318.56
  5. Step 5: Solve for x
    x = 315,352,318.56/19,122.47
  6. Step 6: Final answer
    x = 16,491.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.