Home / 8,397.72-11,584.35-5,209.02

Finding the Fourth Proportional to 8,397.72, 11,584.35 and 5,209.02

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Solution

The fourth proportional to 8,397.72, 11,584.35 and 5,209.02 is: 7,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.72 : 11,584.35 = 5,209.02 : x
  2. Step 2: Convert to fraction form
    8,397.72/11,584.35 = 5,209.02/x
  3. Step 3: Cross multiply
    8,397.72x = 11,584.35 × 5,209.02
  4. Step 4: Simplify right side
    8,397.72x = 60,343,110.84
  5. Step 5: Solve for x
    x = 60,343,110.84/8,397.72
  6. Step 6: Final answer
    x = 7,185.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.