Home / 7,728.69-10,665.45-4,371.39

Finding the Fourth Proportional to 7,728.69, 10,665.45 and 4,371.39

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Solution

The fourth proportional to 7,728.69, 10,665.45 and 4,371.39 is: 6,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.69 : 10,665.45 = 4,371.39 : x
  2. Step 2: Convert to fraction form
    7,728.69/10,665.45 = 4,371.39/x
  3. Step 3: Cross multiply
    7,728.69x = 10,665.45 × 4,371.39
  4. Step 4: Simplify right side
    7,728.69x = 46,622,841.48
  5. Step 5: Solve for x
    x = 46,622,841.48/7,728.69
  6. Step 6: Final answer
    x = 6,032.44

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Half scale
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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.