Home / 15,400.44-21,252.61-8,326.86

Finding the Fourth Proportional to 15,400.44, 21,252.61 and 8,326.86

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Solution

The fourth proportional to 15,400.44, 21,252.61 and 8,326.86 is: 11,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.44 : 21,252.61 = 8,326.86 : x
  2. Step 2: Convert to fraction form
    15,400.44/21,252.61 = 8,326.86/x
  3. Step 3: Cross multiply
    15,400.44x = 21,252.61 × 8,326.86
  4. Step 4: Simplify right side
    15,400.44x = 176,967,508.10
  5. Step 5: Solve for x
    x = 176,967,508.10/15,400.44
  6. Step 6: Final answer
    x = 11,491.07

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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.