Home / 10,918.08-16,378.56-3,899.52

Finding the Fourth Proportional to 10,918.08, 16,378.56 and 3,899.52

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Solution

The fourth proportional to 10,918.08, 16,378.56 and 3,899.52 is: 5,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.08 : 16,378.56 = 3,899.52 : x
  2. Step 2: Convert to fraction form
    10,918.08/16,378.56 = 3,899.52/x
  3. Step 3: Cross multiply
    10,918.08x = 16,378.56 × 3,899.52
  4. Step 4: Simplify right side
    10,918.08x = 63,868,522.29
  5. Step 5: Solve for x
    x = 63,868,522.29/10,918.08
  6. Step 6: Final answer
    x = 5,849.79

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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.