Home / 11,140.68-15,373.67-6,661.79

Finding the Fourth Proportional to 11,140.68, 15,373.67 and 6,661.79

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Solution

The fourth proportional to 11,140.68, 15,373.67 and 6,661.79 is: 9,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.68 : 15,373.67 = 6,661.79 : x
  2. Step 2: Convert to fraction form
    11,140.68/15,373.67 = 6,661.79/x
  3. Step 3: Cross multiply
    11,140.68x = 15,373.67 × 6,661.79
  4. Step 4: Simplify right side
    11,140.68x = 102,416,161.07
  5. Step 5: Solve for x
    x = 102,416,161.07/11,140.68
  6. Step 6: Final answer
    x = 9,192.99

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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.