Home / 15,400.19-21,252.26-8,326.61

Finding the Fourth Proportional to 15,400.19, 21,252.26 and 8,326.61

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Solution

The fourth proportional to 15,400.19, 21,252.26 and 8,326.61 is: 11,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.19 : 21,252.26 = 8,326.61 : x
  2. Step 2: Convert to fraction form
    15,400.19/21,252.26 = 8,326.61/x
  3. Step 3: Cross multiply
    15,400.19x = 21,252.26 × 8,326.61
  4. Step 4: Simplify right side
    15,400.19x = 176,959,280.64
  5. Step 5: Solve for x
    x = 176,959,280.64/15,400.19
  6. Step 6: Final answer
    x = 11,490.72

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Half scale
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Double scale
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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.