Home / 25,786.24-38,679.36-7,317.76

Finding the Fourth Proportional to 25,786.24, 38,679.36 and 7,317.76

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Solution

The fourth proportional to 25,786.24, 38,679.36 and 7,317.76 is: 10,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.24 : 38,679.36 = 7,317.76 : x
  2. Step 2: Convert to fraction form
    25,786.24/38,679.36 = 7,317.76/x
  3. Step 3: Cross multiply
    25,786.24x = 38,679.36 × 7,317.76
  4. Step 4: Simplify right side
    25,786.24x = 283,046,273.43
  5. Step 5: Solve for x
    x = 283,046,273.43/25,786.24
  6. Step 6: Final answer
    x = 10,976.64

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.