Home / 8,816.28-13,227.12-2,972.40

Finding the Fourth Proportional to 8,816.28, 13,227.12 and 2,972.40

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Solution

The fourth proportional to 8,816.28, 13,227.12 and 2,972.40 is: 4,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.28 : 13,227.12 = 2,972.40 : x
  2. Step 2: Convert to fraction form
    8,816.28/13,227.12 = 2,972.40/x
  3. Step 3: Cross multiply
    8,816.28x = 13,227.12 × 2,972.40
  4. Step 4: Simplify right side
    8,816.28x = 39,316,291.49
  5. Step 5: Solve for x
    x = 39,316,291.49/8,816.28
  6. Step 6: Final answer
    x = 4,459.51

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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.