Home / 7,824.52-11,736.80-1,981.13

Finding the Fourth Proportional to 7,824.52, 11,736.80 and 1,981.13

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Solution

The fourth proportional to 7,824.52, 11,736.80 and 1,981.13 is: 2,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.52 : 11,736.80 = 1,981.13 : x
  2. Step 2: Convert to fraction form
    7,824.52/11,736.80 = 1,981.13/x
  3. Step 3: Cross multiply
    7,824.52x = 11,736.80 × 1,981.13
  4. Step 4: Simplify right side
    7,824.52x = 23,252,126.58
  5. Step 5: Solve for x
    x = 23,252,126.58/7,824.52
  6. Step 6: Final answer
    x = 2,971.70

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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.