Home / 8,447.72-11,657.90-4,619.36

Finding the Fourth Proportional to 8,447.72, 11,657.90 and 4,619.36

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Solution

The fourth proportional to 8,447.72, 11,657.90 and 4,619.36 is: 6,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.72 : 11,657.90 = 4,619.36 : x
  2. Step 2: Convert to fraction form
    8,447.72/11,657.90 = 4,619.36/x
  3. Step 3: Cross multiply
    8,447.72x = 11,657.90 × 4,619.36
  4. Step 4: Simplify right side
    8,447.72x = 53,852,042.99
  5. Step 5: Solve for x
    x = 53,852,042.99/8,447.72
  6. Step 6: Final answer
    x = 6,374.75

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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.