Home / 13,050.78-19,576.01-3,190.15

Finding the Fourth Proportional to 13,050.78, 19,576.01 and 3,190.15

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Solution

The fourth proportional to 13,050.78, 19,576.01 and 3,190.15 is: 4,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.78 : 19,576.01 = 3,190.15 : x
  2. Step 2: Convert to fraction form
    13,050.78/19,576.01 = 3,190.15/x
  3. Step 3: Cross multiply
    13,050.78x = 19,576.01 × 3,190.15
  4. Step 4: Simplify right side
    13,050.78x = 62,450,343.41
  5. Step 5: Solve for x
    x = 62,450,343.41/13,050.78
  6. Step 6: Final answer
    x = 4,785.18

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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.