Home / 8,339.40-11,508.31-5,356.37

Finding the Fourth Proportional to 8,339.40, 11,508.31 and 5,356.37

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Solution

The fourth proportional to 8,339.40, 11,508.31 and 5,356.37 is: 7,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.40 : 11,508.31 = 5,356.37 : x
  2. Step 2: Convert to fraction form
    8,339.40/11,508.31 = 5,356.37/x
  3. Step 3: Cross multiply
    8,339.40x = 11,508.31 × 5,356.37
  4. Step 4: Simplify right side
    8,339.40x = 61,642,801.90
  5. Step 5: Solve for x
    x = 61,642,801.90/8,339.40
  6. Step 6: Final answer
    x = 7,391.76

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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.