Home / 15,180.37-20,947.89-9,514.92

Finding the Fourth Proportional to 15,180.37, 20,947.89 and 9,514.92

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Solution

The fourth proportional to 15,180.37, 20,947.89 and 9,514.92 is: 13,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.37 : 20,947.89 = 9,514.92 : x
  2. Step 2: Convert to fraction form
    15,180.37/20,947.89 = 9,514.92/x
  3. Step 3: Cross multiply
    15,180.37x = 20,947.89 × 9,514.92
  4. Step 4: Simplify right side
    15,180.37x = 199,317,497.52
  5. Step 5: Solve for x
    x = 199,317,497.52/15,180.37
  6. Step 6: Final answer
    x = 13,129.95

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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.