Home / 13,305.48-19,960.56-5,519.76

Finding the Fourth Proportional to 13,305.48, 19,960.56 and 5,519.76

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Solution

The fourth proportional to 13,305.48, 19,960.56 and 5,519.76 is: 8,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.48 : 19,960.56 = 5,519.76 : x
  2. Step 2: Convert to fraction form
    13,305.48/19,960.56 = 5,519.76/x
  3. Step 3: Cross multiply
    13,305.48x = 19,960.56 × 5,519.76
  4. Step 4: Simplify right side
    13,305.48x = 110,177,500.67
  5. Step 5: Solve for x
    x = 110,177,500.67/13,305.48
  6. Step 6: Final answer
    x = 8,280.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.