Home / 7,836.78-11,759.34-3,457.32

Finding the Fourth Proportional to 7,836.78, 11,759.34 and 3,457.32

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Solution

The fourth proportional to 7,836.78, 11,759.34 and 3,457.32 is: 5,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.78 : 11,759.34 = 3,457.32 : x
  2. Step 2: Convert to fraction form
    7,836.78/11,759.34 = 3,457.32/x
  3. Step 3: Cross multiply
    7,836.78x = 11,759.34 × 3,457.32
  4. Step 4: Simplify right side
    7,836.78x = 40,655,801.37
  5. Step 5: Solve for x
    x = 40,655,801.37/7,836.78
  6. Step 6: Final answer
    x = 5,187.82

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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.