Home / 8,071.44-11,112.84-6,887.76

Finding the Fourth Proportional to 8,071.44, 11,112.84 and 6,887.76

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Solution

The fourth proportional to 8,071.44, 11,112.84 and 6,887.76 is: 9,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.44 : 11,112.84 = 6,887.76 : x
  2. Step 2: Convert to fraction form
    8,071.44/11,112.84 = 6,887.76/x
  3. Step 3: Cross multiply
    8,071.44x = 11,112.84 × 6,887.76
  4. Step 4: Simplify right side
    8,071.44x = 76,542,574.84
  5. Step 5: Solve for x
    x = 76,542,574.84/8,071.44
  6. Step 6: Final answer
    x = 9,483.14

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Half scale
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Double 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.