Home / 15,590.62-21,514.02-8,876.94

Finding the Fourth Proportional to 15,590.62, 21,514.02 and 8,876.94

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Solution

The fourth proportional to 15,590.62, 21,514.02 and 8,876.94 is: 12,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.62 : 21,514.02 = 8,876.94 : x
  2. Step 2: Convert to fraction form
    15,590.62/21,514.02 = 8,876.94/x
  3. Step 3: Cross multiply
    15,590.62x = 21,514.02 × 8,876.94
  4. Step 4: Simplify right side
    15,590.62x = 190,978,664.70
  5. Step 5: Solve for x
    x = 190,978,664.70/15,590.62
  6. Step 6: Final answer
    x = 12,249.59

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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.