Home / 15,003.70-22,491.64-5,140.64

Finding the Fourth Proportional to 15,003.70, 22,491.64 and 5,140.64

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Solution

The fourth proportional to 15,003.70, 22,491.64 and 5,140.64 is: 7,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.70 : 22,491.64 = 5,140.64 : x
  2. Step 2: Convert to fraction form
    15,003.70/22,491.64 = 5,140.64/x
  3. Step 3: Cross multiply
    15,003.70x = 22,491.64 × 5,140.64
  4. Step 4: Simplify right side
    15,003.70x = 115,621,286.09
  5. Step 5: Solve for x
    x = 115,621,286.09/15,003.70
  6. Step 6: Final answer
    x = 7,706.18

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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.