Home / 10,485.13-15,717.97-5,550.61

Finding the Fourth Proportional to 10,485.13, 15,717.97 and 5,550.61

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Solution

The fourth proportional to 10,485.13, 15,717.97 and 5,550.61 is: 8,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.13 : 15,717.97 = 5,550.61 : x
  2. Step 2: Convert to fraction form
    10,485.13/15,717.97 = 5,550.61/x
  3. Step 3: Cross multiply
    10,485.13x = 15,717.97 × 5,550.61
  4. Step 4: Simplify right side
    10,485.13x = 87,244,321.46
  5. Step 5: Solve for x
    x = 87,244,321.46/10,485.13
  6. Step 6: Final answer
    x = 8,320.77

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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.