Home / 9,971.79-13,761.16-5,495.70

Finding the Fourth Proportional to 9,971.79, 13,761.16 and 5,495.70

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Solution

The fourth proportional to 9,971.79, 13,761.16 and 5,495.70 is: 7,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,971.79 : 13,761.16 = 5,495.70 : x
  2. Step 2: Convert to fraction form
    9,971.79/13,761.16 = 5,495.70/x
  3. Step 3: Cross multiply
    9,971.79x = 13,761.16 × 5,495.70
  4. Step 4: Simplify right side
    9,971.79x = 75,627,220.75
  5. Step 5: Solve for x
    x = 75,627,220.75/9,971.79
  6. Step 6: Final answer
    x = 7,584.12

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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.