Home / 10,141.72-15,210.66-6,391.96

Finding the Fourth Proportional to 10,141.72, 15,210.66 and 6,391.96

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Solution

The fourth proportional to 10,141.72, 15,210.66 and 6,391.96 is: 9,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.72 : 15,210.66 = 6,391.96 : x
  2. Step 2: Convert to fraction form
    10,141.72/15,210.66 = 6,391.96/x
  3. Step 3: Cross multiply
    10,141.72x = 15,210.66 × 6,391.96
  4. Step 4: Simplify right side
    10,141.72x = 97,225,930.29
  5. Step 5: Solve for x
    x = 97,225,930.29/10,141.72
  6. Step 6: Final answer
    x = 9,586.73

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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.