Home / 10,369.31-15,554.02-2,578.12

Finding the Fourth Proportional to 10,369.31, 15,554.02 and 2,578.12

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Solution

The fourth proportional to 10,369.31, 15,554.02 and 2,578.12 is: 3,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.31 : 15,554.02 = 2,578.12 : x
  2. Step 2: Convert to fraction form
    10,369.31/15,554.02 = 2,578.12/x
  3. Step 3: Cross multiply
    10,369.31x = 15,554.02 × 2,578.12
  4. Step 4: Simplify right side
    10,369.31x = 40,100,081.49
  5. Step 5: Solve for x
    x = 40,100,081.49/10,369.31
  6. Step 6: Final answer
    x = 3,867.19

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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.