Home / 15,213.16-20,994.60-8,498.56

Finding the Fourth Proportional to 15,213.16, 20,994.60 and 8,498.56

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Solution

The fourth proportional to 15,213.16, 20,994.60 and 8,498.56 is: 11,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.16 : 20,994.60 = 8,498.56 : x
  2. Step 2: Convert to fraction form
    15,213.16/20,994.60 = 8,498.56/x
  3. Step 3: Cross multiply
    15,213.16x = 20,994.60 × 8,498.56
  4. Step 4: Simplify right side
    15,213.16x = 178,423,867.78
  5. Step 5: Solve for x
    x = 178,423,867.78/15,213.16
  6. Step 6: Final answer
    x = 11,728.26

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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.