Home / 11,729.69-16,187.19-6,424.17

Finding the Fourth Proportional to 11,729.69, 16,187.19 and 6,424.17

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Solution

The fourth proportional to 11,729.69, 16,187.19 and 6,424.17 is: 8,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.69 : 16,187.19 = 6,424.17 : x
  2. Step 2: Convert to fraction form
    11,729.69/16,187.19 = 6,424.17/x
  3. Step 3: Cross multiply
    11,729.69x = 16,187.19 × 6,424.17
  4. Step 4: Simplify right side
    11,729.69x = 103,989,147.33
  5. Step 5: Solve for x
    x = 103,989,147.33/11,729.69
  6. Step 6: Final answer
    x = 8,865.46

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.