Home / 7,424.46-11,138.76-4,139.91

Finding the Fourth Proportional to 7,424.46, 11,138.76 and 4,139.91

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Solution

The fourth proportional to 7,424.46, 11,138.76 and 4,139.91 is: 6,211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.46 : 11,138.76 = 4,139.91 : x
  2. Step 2: Convert to fraction form
    7,424.46/11,138.76 = 4,139.91/x
  3. Step 3: Cross multiply
    7,424.46x = 11,138.76 × 4,139.91
  4. Step 4: Simplify right side
    7,424.46x = 46,113,463.91
  5. Step 5: Solve for x
    x = 46,113,463.91/7,424.46
  6. Step 6: Final answer
    x = 6,211.02

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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.