Home / 15,305.33-21,118.68-8,591.24

Finding the Fourth Proportional to 15,305.33, 21,118.68 and 8,591.24

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Solution

The fourth proportional to 15,305.33, 21,118.68 and 8,591.24 is: 11,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.33 : 21,118.68 = 8,591.24 : x
  2. Step 2: Convert to fraction form
    15,305.33/21,118.68 = 8,591.24/x
  3. Step 3: Cross multiply
    15,305.33x = 21,118.68 × 8,591.24
  4. Step 4: Simplify right side
    15,305.33x = 181,435,542.77
  5. Step 5: Solve for x
    x = 181,435,542.77/15,305.33
  6. Step 6: Final answer
    x = 11,854.41

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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.