Home / 7,824.18-11,736.27-1,981.25

Finding the Fourth Proportional to 7,824.18, 11,736.27 and 1,981.25

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Solution

The fourth proportional to 7,824.18, 11,736.27 and 1,981.25 is: 2,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.18 : 11,736.27 = 1,981.25 : x
  2. Step 2: Convert to fraction form
    7,824.18/11,736.27 = 1,981.25/x
  3. Step 3: Cross multiply
    7,824.18x = 11,736.27 × 1,981.25
  4. Step 4: Simplify right side
    7,824.18x = 23,252,426.26
  5. Step 5: Solve for x
    x = 23,252,426.26/7,824.18
  6. Step 6: Final answer
    x = 2,971.87

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