Home / 15,514.68-21,408.66-9,225.88

Finding the Fourth Proportional to 15,514.68, 21,408.66 and 9,225.88

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Solution

The fourth proportional to 15,514.68, 21,408.66 and 9,225.88 is: 12,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.68 : 21,408.66 = 9,225.88 : x
  2. Step 2: Convert to fraction form
    15,514.68/21,408.66 = 9,225.88/x
  3. Step 3: Cross multiply
    15,514.68x = 21,408.66 × 9,225.88
  4. Step 4: Simplify right side
    15,514.68x = 197,513,728.12
  5. Step 5: Solve for x
    x = 197,513,728.12/15,514.68
  6. Step 6: Final answer
    x = 12,730.76

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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.