Home / 10,887.78-16,338.96-3,867.51

Finding the Fourth Proportional to 10,887.78, 16,338.96 and 3,867.51

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Solution

The fourth proportional to 10,887.78, 16,338.96 and 3,867.51 is: 5,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.78 : 16,338.96 = 3,867.51 : x
  2. Step 2: Convert to fraction form
    10,887.78/16,338.96 = 3,867.51/x
  3. Step 3: Cross multiply
    10,887.78x = 16,338.96 × 3,867.51
  4. Step 4: Simplify right side
    10,887.78x = 63,191,091.19
  5. Step 5: Solve for x
    x = 63,191,091.19/10,887.78
  6. Step 6: Final answer
    x = 5,803.85

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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.