Home / 10,538.16-15,805.08-3,872.36

Finding the Fourth Proportional to 10,538.16, 15,805.08 and 3,872.36

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Solution

The fourth proportional to 10,538.16, 15,805.08 and 3,872.36 is: 5,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.16 : 15,805.08 = 3,872.36 : x
  2. Step 2: Convert to fraction form
    10,538.16/15,805.08 = 3,872.36/x
  3. Step 3: Cross multiply
    10,538.16x = 15,805.08 × 3,872.36
  4. Step 4: Simplify right side
    10,538.16x = 61,202,959.59
  5. Step 5: Solve for x
    x = 61,202,959.59/10,538.16
  6. Step 6: Final answer
    x = 5,807.75

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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.