Home / 9,211.10-13,805.08-3,939.91

Finding the Fourth Proportional to 9,211.10, 13,805.08 and 3,939.91

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Solution

The fourth proportional to 9,211.10, 13,805.08 and 3,939.91 is: 5,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.10 : 13,805.08 = 3,939.91 : x
  2. Step 2: Convert to fraction form
    9,211.10/13,805.08 = 3,939.91/x
  3. Step 3: Cross multiply
    9,211.10x = 13,805.08 × 3,939.91
  4. Step 4: Simplify right side
    9,211.10x = 54,390,703.72
  5. Step 5: Solve for x
    x = 54,390,703.72/9,211.10
  6. Step 6: Final answer
    x = 5,904.91

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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.