Home / 15,400.34-21,252.48-8,326.76

Finding the Fourth Proportional to 15,400.34, 21,252.48 and 8,326.76

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Solution

The fourth proportional to 15,400.34, 21,252.48 and 8,326.76 is: 11,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.34 : 21,252.48 = 8,326.76 : x
  2. Step 2: Convert to fraction form
    15,400.34/21,252.48 = 8,326.76/x
  3. Step 3: Cross multiply
    15,400.34x = 21,252.48 × 8,326.76
  4. Step 4: Simplify right side
    15,400.34x = 176,964,162.88
  5. Step 5: Solve for x
    x = 176,964,162.88/15,400.34
  6. Step 6: Final answer
    x = 11,490.93

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Half scale
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Double scale
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Similar ratio
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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.