Home / 9,147.52-13,721.28-2,222

Finding the Fourth Proportional to 9,147.52, 13,721.28 and 2,222

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Solution

The fourth proportional to 9,147.52, 13,721.28 and 2,222 is: 3,333

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.52 : 13,721.28 = 2,222 : x
  2. Step 2: Convert to fraction form
    9,147.52/13,721.28 = 2,222/x
  3. Step 3: Cross multiply
    9,147.52x = 13,721.28 × 2,222
  4. Step 4: Simplify right side
    9,147.52x = 30,488,684.16
  5. Step 5: Solve for x
    x = 30,488,684.16/9,147.52
  6. Step 6: Final answer
    x = 3,333

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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.