Home / 8,470.22-11,689.36-4,693.79

Finding the Fourth Proportional to 8,470.22, 11,689.36 and 4,693.79

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Solution

The fourth proportional to 8,470.22, 11,689.36 and 4,693.79 is: 6,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.22 : 11,689.36 = 4,693.79 : x
  2. Step 2: Convert to fraction form
    8,470.22/11,689.36 = 4,693.79/x
  3. Step 3: Cross multiply
    8,470.22x = 11,689.36 × 4,693.79
  4. Step 4: Simplify right side
    8,470.22x = 54,867,418.56
  5. Step 5: Solve for x
    x = 54,867,418.56/8,470.22
  6. Step 6: Final answer
    x = 6,477.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.