Home / 10,383.50-15,576.18-4,142

Finding the Fourth Proportional to 10,383.50, 15,576.18 and 4,142

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Solution

The fourth proportional to 10,383.50, 15,576.18 and 4,142 is: 6,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.50 : 15,576.18 = 4,142 : x
  2. Step 2: Convert to fraction form
    10,383.50/15,576.18 = 4,142/x
  3. Step 3: Cross multiply
    10,383.50x = 15,576.18 × 4,142
  4. Step 4: Simplify right side
    10,383.50x = 64,516,537.56
  5. Step 5: Solve for x
    x = 64,516,537.56/10,383.50
  6. Step 6: Final answer
    x = 6,213.37

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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.