Home / 15,591.82-21,514.23-8,877.57

Finding the Fourth Proportional to 15,591.82, 21,514.23 and 8,877.57

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Solution

The fourth proportional to 15,591.82, 21,514.23 and 8,877.57 is: 12,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,591.82 : 21,514.23 = 8,877.57 : x
  2. Step 2: Convert to fraction form
    15,591.82/21,514.23 = 8,877.57/x
  3. Step 3: Cross multiply
    15,591.82x = 21,514.23 × 8,877.57
  4. Step 4: Simplify right side
    15,591.82x = 190,994,208.64
  5. Step 5: Solve for x
    x = 190,994,208.64/15,591.82
  6. Step 6: Final answer
    x = 12,249.64

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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.