Home / 7,619.54-11,396.49-6,781.19

Finding the Fourth Proportional to 7,619.54, 11,396.49 and 6,781.19

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Solution

The fourth proportional to 7,619.54, 11,396.49 and 6,781.19 is: 10,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.54 : 11,396.49 = 6,781.19 : x
  2. Step 2: Convert to fraction form
    7,619.54/11,396.49 = 6,781.19/x
  3. Step 3: Cross multiply
    7,619.54x = 11,396.49 × 6,781.19
  4. Step 4: Simplify right side
    7,619.54x = 77,281,764.02
  5. Step 5: Solve for x
    x = 77,281,764.02/7,619.54
  6. Step 6: Final answer
    x = 10,142.58

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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.