Home / 8,921.71-13,383.25-2,681.23

Finding the Fourth Proportional to 8,921.71, 13,383.25 and 2,681.23

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Solution

The fourth proportional to 8,921.71, 13,383.25 and 2,681.23 is: 4,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.71 : 13,383.25 = 2,681.23 : x
  2. Step 2: Convert to fraction form
    8,921.71/13,383.25 = 2,681.23/x
  3. Step 3: Cross multiply
    8,921.71x = 13,383.25 × 2,681.23
  4. Step 4: Simplify right side
    8,921.71x = 35,883,571.40
  5. Step 5: Solve for x
    x = 35,883,571.40/8,921.71
  6. Step 6: Final answer
    x = 4,022.05

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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.