Home / 7,423.50-11,126.36-5,190.14

Finding the Fourth Proportional to 7,423.50, 11,126.36 and 5,190.14

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Solution

The fourth proportional to 7,423.50, 11,126.36 and 5,190.14 is: 7,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.50 : 11,126.36 = 5,190.14 : x
  2. Step 2: Convert to fraction form
    7,423.50/11,126.36 = 5,190.14/x
  3. Step 3: Cross multiply
    7,423.50x = 11,126.36 × 5,190.14
  4. Step 4: Simplify right side
    7,423.50x = 57,747,367.96
  5. Step 5: Solve for x
    x = 57,747,367.96/7,423.50
  6. Step 6: Final answer
    x = 7,778.99

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1.5x scale

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.