Home / 9,117.44-13,667.52-3,920

Finding the Fourth Proportional to 9,117.44, 13,667.52 and 3,920

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Solution

The fourth proportional to 9,117.44, 13,667.52 and 3,920 is: 5,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.44 : 13,667.52 = 3,920 : x
  2. Step 2: Convert to fraction form
    9,117.44/13,667.52 = 3,920/x
  3. Step 3: Cross multiply
    9,117.44x = 13,667.52 × 3,920
  4. Step 4: Simplify right side
    9,117.44x = 53,576,678.40
  5. Step 5: Solve for x
    x = 53,576,678.40/9,117.44
  6. Step 6: Final answer
    x = 5,876.29

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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.