Home / 18,326.54-25,276.79-12,670.76

Finding the Fourth Proportional to 18,326.54, 25,276.79 and 12,670.76

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Solution

The fourth proportional to 18,326.54, 25,276.79 and 12,670.76 is: 17,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.54 : 25,276.79 = 12,670.76 : x
  2. Step 2: Convert to fraction form
    18,326.54/25,276.79 = 12,670.76/x
  3. Step 3: Cross multiply
    18,326.54x = 25,276.79 × 12,670.76
  4. Step 4: Simplify right side
    18,326.54x = 320,276,234.53
  5. Step 5: Solve for x
    x = 320,276,234.53/18,326.54
  6. Step 6: Final answer
    x = 17,476.09

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Half 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.