Home / 8,673.40-13,016.56-5,391.28

Finding the Fourth Proportional to 8,673.40, 13,016.56 and 5,391.28

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Solution

The fourth proportional to 8,673.40, 13,016.56 and 5,391.28 is: 8,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.40 : 13,016.56 = 5,391.28 : x
  2. Step 2: Convert to fraction form
    8,673.40/13,016.56 = 5,391.28/x
  3. Step 3: Cross multiply
    8,673.40x = 13,016.56 × 5,391.28
  4. Step 4: Simplify right side
    8,673.40x = 70,175,919.60
  5. Step 5: Solve for x
    x = 70,175,919.60/8,673.40
  6. Step 6: Final answer
    x = 8,090.94

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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.