Home / 15,514.74-21,410.24-8,441.20

Finding the Fourth Proportional to 15,514.74, 21,410.24 and 8,441.20

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Solution

The fourth proportional to 15,514.74, 21,410.24 and 8,441.20 is: 11,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.74 : 21,410.24 = 8,441.20 : x
  2. Step 2: Convert to fraction form
    15,514.74/21,410.24 = 8,441.20/x
  3. Step 3: Cross multiply
    15,514.74x = 21,410.24 × 8,441.20
  4. Step 4: Simplify right side
    15,514.74x = 180,728,117.89
  5. Step 5: Solve for x
    x = 180,728,117.89/15,514.74
  6. Step 6: Final answer
    x = 11,648.80

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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.