Home / 8,065.25-11,130.51-5,371.79

Finding the Fourth Proportional to 8,065.25, 11,130.51 and 5,371.79

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Solution

The fourth proportional to 8,065.25, 11,130.51 and 5,371.79 is: 7,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.25 : 11,130.51 = 5,371.79 : x
  2. Step 2: Convert to fraction form
    8,065.25/11,130.51 = 5,371.79/x
  3. Step 3: Cross multiply
    8,065.25x = 11,130.51 × 5,371.79
  4. Step 4: Simplify right side
    8,065.25x = 59,790,762.31
  5. Step 5: Solve for x
    x = 59,790,762.31/8,065.25
  6. Step 6: Final answer
    x = 7,413.38

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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.