Home / 6,892.08-10,327.75-5,128.81

Finding the Fourth Proportional to 6,892.08, 10,327.75 and 5,128.81

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Solution

The fourth proportional to 6,892.08, 10,327.75 and 5,128.81 is: 7,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.08 : 10,327.75 = 5,128.81 : x
  2. Step 2: Convert to fraction form
    6,892.08/10,327.75 = 5,128.81/x
  3. Step 3: Cross multiply
    6,892.08x = 10,327.75 × 5,128.81
  4. Step 4: Simplify right side
    6,892.08x = 52,969,028.84
  5. Step 5: Solve for x
    x = 52,969,028.84/6,892.08
  6. Step 6: Final answer
    x = 7,685.50

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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.