Home / 15,049.36-20,767.80-8,334.76

Finding the Fourth Proportional to 15,049.36, 20,767.80 and 8,334.76

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Solution

The fourth proportional to 15,049.36, 20,767.80 and 8,334.76 is: 11,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.36 : 20,767.80 = 8,334.76 : x
  2. Step 2: Convert to fraction form
    15,049.36/20,767.80 = 8,334.76/x
  3. Step 3: Cross multiply
    15,049.36x = 20,767.80 × 8,334.76
  4. Step 4: Simplify right side
    15,049.36x = 173,094,628.73
  5. Step 5: Solve for x
    x = 173,094,628.73/15,049.36
  6. Step 6: Final answer
    x = 11,501.79

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Double scale
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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.