Home / 7,424.09-11,140.47-2,747.39

Finding the Fourth Proportional to 7,424.09, 11,140.47 and 2,747.39

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Solution

The fourth proportional to 7,424.09, 11,140.47 and 2,747.39 is: 4,122.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.09 : 11,140.47 = 2,747.39 : x
  2. Step 2: Convert to fraction form
    7,424.09/11,140.47 = 2,747.39/x
  3. Step 3: Cross multiply
    7,424.09x = 11,140.47 × 2,747.39
  4. Step 4: Simplify right side
    7,424.09x = 30,607,160.17
  5. Step 5: Solve for x
    x = 30,607,160.17/7,424.09
  6. Step 6: Final answer
    x = 4,122.68

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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.