Home / 10,121.54-15,177.91-5,376.67

Finding the Fourth Proportional to 10,121.54, 15,177.91 and 5,376.67

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Solution

The fourth proportional to 10,121.54, 15,177.91 and 5,376.67 is: 8,062.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.54 : 15,177.91 = 5,376.67 : x
  2. Step 2: Convert to fraction form
    10,121.54/15,177.91 = 5,376.67/x
  3. Step 3: Cross multiply
    10,121.54x = 15,177.91 × 5,376.67
  4. Step 4: Simplify right side
    10,121.54x = 81,606,561.97
  5. Step 5: Solve for x
    x = 81,606,561.97/10,121.54
  6. Step 6: Final answer
    x = 8,062.66

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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.