Home / 9,217.12-13,828.44-2,978.11

Finding the Fourth Proportional to 9,217.12, 13,828.44 and 2,978.11

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Solution

The fourth proportional to 9,217.12, 13,828.44 and 2,978.11 is: 4,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.12 : 13,828.44 = 2,978.11 : x
  2. Step 2: Convert to fraction form
    9,217.12/13,828.44 = 2,978.11/x
  3. Step 3: Cross multiply
    9,217.12x = 13,828.44 × 2,978.11
  4. Step 4: Simplify right side
    9,217.12x = 41,182,615.45
  5. Step 5: Solve for x
    x = 41,182,615.45/9,217.12
  6. Step 6: Final answer
    x = 4,468.06

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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.