Home / 15,400.30-21,252.41-8,326.72

Finding the Fourth Proportional to 15,400.30, 21,252.41 and 8,326.72

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Solution

The fourth proportional to 15,400.30, 21,252.41 and 8,326.72 is: 11,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.30 : 21,252.41 = 8,326.72 : x
  2. Step 2: Convert to fraction form
    15,400.30/21,252.41 = 8,326.72/x
  3. Step 3: Cross multiply
    15,400.30x = 21,252.41 × 8,326.72
  4. Step 4: Simplify right side
    15,400.30x = 176,962,825.76
  5. Step 5: Solve for x
    x = 176,962,825.76/15,400.30
  6. Step 6: Final answer
    x = 11,490.87

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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.