Home / 10,129.38-15,192.91-2,733.40

Finding the Fourth Proportional to 10,129.38, 15,192.91 and 2,733.40

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Solution

The fourth proportional to 10,129.38, 15,192.91 and 2,733.40 is: 4,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.38 : 15,192.91 = 2,733.40 : x
  2. Step 2: Convert to fraction form
    10,129.38/15,192.91 = 2,733.40/x
  3. Step 3: Cross multiply
    10,129.38x = 15,192.91 × 2,733.40
  4. Step 4: Simplify right side
    10,129.38x = 41,528,300.19
  5. Step 5: Solve for x
    x = 41,528,300.19/10,129.38
  6. Step 6: Final answer
    x = 4,099.79

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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.