Home / 15,400.32-21,252.38-8,326.74

Finding the Fourth Proportional to 15,400.32, 21,252.38 and 8,326.74

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Solution

The fourth proportional to 15,400.32, 21,252.38 and 8,326.74 is: 11,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.32 : 21,252.38 = 8,326.74 : x
  2. Step 2: Convert to fraction form
    15,400.32/21,252.38 = 8,326.74/x
  3. Step 3: Cross multiply
    15,400.32x = 21,252.38 × 8,326.74
  4. Step 4: Simplify right side
    15,400.32x = 176,963,042.64
  5. Step 5: Solve for x
    x = 176,963,042.64/15,400.32
  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.