Home / 10,491.56-15,737.37-3,917.67

Finding the Fourth Proportional to 10,491.56, 15,737.37 and 3,917.67

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Solution

The fourth proportional to 10,491.56, 15,737.37 and 3,917.67 is: 5,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.56 : 15,737.37 = 3,917.67 : x
  2. Step 2: Convert to fraction form
    10,491.56/15,737.37 = 3,917.67/x
  3. Step 3: Cross multiply
    10,491.56x = 15,737.37 × 3,917.67
  4. Step 4: Simplify right side
    10,491.56x = 61,653,822.33
  5. Step 5: Solve for x
    x = 61,653,822.33/10,491.56
  6. Step 6: Final answer
    x = 5,876.52

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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.