Home / 9,217.70-13,826.56-2,978.16

Finding the Fourth Proportional to 9,217.70, 13,826.56 and 2,978.16

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Solution

The fourth proportional to 9,217.70, 13,826.56 and 2,978.16 is: 4,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.70 : 13,826.56 = 2,978.16 : x
  2. Step 2: Convert to fraction form
    9,217.70/13,826.56 = 2,978.16/x
  3. Step 3: Cross multiply
    9,217.70x = 13,826.56 × 2,978.16
  4. Step 4: Simplify right side
    9,217.70x = 41,177,707.93
  5. Step 5: Solve for x
    x = 41,177,707.93/9,217.70
  6. Step 6: Final answer
    x = 4,467.24

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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.