Home / 10,133.56-15,172.38-5,192.68

Finding the Fourth Proportional to 10,133.56, 15,172.38 and 5,192.68

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Solution

The fourth proportional to 10,133.56, 15,172.38 and 5,192.68 is: 7,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.56 : 15,172.38 = 5,192.68 : x
  2. Step 2: Convert to fraction form
    10,133.56/15,172.38 = 5,192.68/x
  3. Step 3: Cross multiply
    10,133.56x = 15,172.38 × 5,192.68
  4. Step 4: Simplify right side
    10,133.56x = 78,785,314.18
  5. Step 5: Solve for x
    x = 78,785,314.18/10,133.56
  6. Step 6: Final answer
    x = 7,774.69

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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.