Home / 6,540.48-9,016.32-5,140.80

Finding the Fourth Proportional to 6,540.48, 9,016.32 and 5,140.80

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Solution

The fourth proportional to 6,540.48, 9,016.32 and 5,140.80 is: 7,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.48 : 9,016.32 = 5,140.80 : x
  2. Step 2: Convert to fraction form
    6,540.48/9,016.32 = 5,140.80/x
  3. Step 3: Cross multiply
    6,540.48x = 9,016.32 × 5,140.80
  4. Step 4: Simplify right side
    6,540.48x = 46,351,097.86
  5. Step 5: Solve for x
    x = 46,351,097.86/6,540.48
  6. Step 6: Final answer
    x = 7,086.80

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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.