Home / 15,514.72-21,419.04-11,873.91

Finding the Fourth Proportional to 15,514.72, 21,419.04 and 11,873.91

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Solution

The fourth proportional to 15,514.72, 21,419.04 and 11,873.91 is: 16,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.72 : 21,419.04 = 11,873.91 : x
  2. Step 2: Convert to fraction form
    15,514.72/21,419.04 = 11,873.91/x
  3. Step 3: Cross multiply
    15,514.72x = 21,419.04 × 11,873.91
  4. Step 4: Simplify right side
    15,514.72x = 254,327,753.25
  5. Step 5: Solve for x
    x = 254,327,753.25/15,514.72
  6. Step 6: Final answer
    x = 16,392.67

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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.