Home / 7,836.12-11,754.18-2,645.64

Finding the Fourth Proportional to 7,836.12, 11,754.18 and 2,645.64

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Solution

The fourth proportional to 7,836.12, 11,754.18 and 2,645.64 is: 3,968.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.12 : 11,754.18 = 2,645.64 : x
  2. Step 2: Convert to fraction form
    7,836.12/11,754.18 = 2,645.64/x
  3. Step 3: Cross multiply
    7,836.12x = 11,754.18 × 2,645.64
  4. Step 4: Simplify right side
    7,836.12x = 31,097,328.78
  5. Step 5: Solve for x
    x = 31,097,328.78/7,836.12
  6. Step 6: Final answer
    x = 3,968.46

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Similar ratio
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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.