Home / 15,609.15-21,540.60-8,894.79

Finding the Fourth Proportional to 15,609.15, 21,540.60 and 8,894.79

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Solution

The fourth proportional to 15,609.15, 21,540.60 and 8,894.79 is: 12,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.15 : 21,540.60 = 8,894.79 : x
  2. Step 2: Convert to fraction form
    15,609.15/21,540.60 = 8,894.79/x
  3. Step 3: Cross multiply
    15,609.15x = 21,540.60 × 8,894.79
  4. Step 4: Simplify right side
    15,609.15x = 191,599,113.47
  5. Step 5: Solve for x
    x = 191,599,113.47/15,609.15
  6. Step 6: Final answer
    x = 12,274.79

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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.