Home / 6,986.64-10,469.96-5,256.48

Finding the Fourth Proportional to 6,986.64, 10,469.96 and 5,256.48

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Solution

The fourth proportional to 6,986.64, 10,469.96 and 5,256.48 is: 7,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.64 : 10,469.96 = 5,256.48 : x
  2. Step 2: Convert to fraction form
    6,986.64/10,469.96 = 5,256.48/x
  3. Step 3: Cross multiply
    6,986.64x = 10,469.96 × 5,256.48
  4. Step 4: Simplify right side
    6,986.64x = 55,035,135.34
  5. Step 5: Solve for x
    x = 55,035,135.34/6,986.64
  6. Step 6: Final answer
    x = 7,877.20

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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.