Home / 15,213.45-20,994.08-8,498.96

Finding the Fourth Proportional to 15,213.45, 20,994.08 and 8,498.96

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Solution

The fourth proportional to 15,213.45, 20,994.08 and 8,498.96 is: 11,728.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.45 : 20,994.08 = 8,498.96 : x
  2. Step 2: Convert to fraction form
    15,213.45/20,994.08 = 8,498.96/x
  3. Step 3: Cross multiply
    15,213.45x = 20,994.08 × 8,498.96
  4. Step 4: Simplify right side
    15,213.45x = 178,427,698.69
  5. Step 5: Solve for x
    x = 178,427,698.69/15,213.45
  6. Step 6: Final answer
    x = 11,728.29

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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.