Home / 9,108.64-13,645.76-5,201.28

Finding the Fourth Proportional to 9,108.64, 13,645.76 and 5,201.28

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Solution

The fourth proportional to 9,108.64, 13,645.76 and 5,201.28 is: 7,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.64 : 13,645.76 = 5,201.28 : x
  2. Step 2: Convert to fraction form
    9,108.64/13,645.76 = 5,201.28/x
  3. Step 3: Cross multiply
    9,108.64x = 13,645.76 × 5,201.28
  4. Step 4: Simplify right side
    9,108.64x = 70,975,418.57
  5. Step 5: Solve for x
    x = 70,975,418.57/9,108.64
  6. Step 6: Final answer
    x = 7,792.10

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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.