Home / 9,151.79-13,721.81-4,222.53

Finding the Fourth Proportional to 9,151.79, 13,721.81 and 4,222.53

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Solution

The fourth proportional to 9,151.79, 13,721.81 and 4,222.53 is: 6,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.79 : 13,721.81 = 4,222.53 : x
  2. Step 2: Convert to fraction form
    9,151.79/13,721.81 = 4,222.53/x
  3. Step 3: Cross multiply
    9,151.79x = 13,721.81 × 4,222.53
  4. Step 4: Simplify right side
    9,151.79x = 57,940,733.27
  5. Step 5: Solve for x
    x = 57,940,733.27/9,151.79
  6. Step 6: Final answer
    x = 6,331.09

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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.