Home / 9,212.28-13,821.11-2,972.16

Finding the Fourth Proportional to 9,212.28, 13,821.11 and 2,972.16

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Solution

The fourth proportional to 9,212.28, 13,821.11 and 2,972.16 is: 4,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.28 : 13,821.11 = 2,972.16 : x
  2. Step 2: Convert to fraction form
    9,212.28/13,821.11 = 2,972.16/x
  3. Step 3: Cross multiply
    9,212.28x = 13,821.11 × 2,972.16
  4. Step 4: Simplify right side
    9,212.28x = 41,078,598.41
  5. Step 5: Solve for x
    x = 41,078,598.41/9,212.28
  6. Step 6: Final answer
    x = 4,459.11

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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.