Home / 7,911.26-10,917-4,374.44

Finding the Fourth Proportional to 7,911.26, 10,917 and 4,374.44

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Solution

The fourth proportional to 7,911.26, 10,917 and 4,374.44 is: 6,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.26 : 10,917 = 4,374.44 : x
  2. Step 2: Convert to fraction form
    7,911.26/10,917 = 4,374.44/x
  3. Step 3: Cross multiply
    7,911.26x = 10,917 × 4,374.44
  4. Step 4: Simplify right side
    7,911.26x = 47,755,761.48
  5. Step 5: Solve for x
    x = 47,755,761.48/7,911.26
  6. Step 6: Final answer
    x = 6,036.43

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1.5x scale

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.