Home / 7,618.38-11,416.86-3,611.52

Finding the Fourth Proportional to 7,618.38, 11,416.86 and 3,611.52

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Solution

The fourth proportional to 7,618.38, 11,416.86 and 3,611.52 is: 5,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.38 : 11,416.86 = 3,611.52 : x
  2. Step 2: Convert to fraction form
    7,618.38/11,416.86 = 3,611.52/x
  3. Step 3: Cross multiply
    7,618.38x = 11,416.86 × 3,611.52
  4. Step 4: Simplify right side
    7,618.38x = 41,232,218.23
  5. Step 5: Solve for x
    x = 41,232,218.23/7,618.38
  6. Step 6: Final answer
    x = 5,412.20

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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.