Home / 10,428.54-15,640.64-3,850.22

Finding the Fourth Proportional to 10,428.54, 15,640.64 and 3,850.22

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Solution

The fourth proportional to 10,428.54, 15,640.64 and 3,850.22 is: 5,774.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.54 : 15,640.64 = 3,850.22 : x
  2. Step 2: Convert to fraction form
    10,428.54/15,640.64 = 3,850.22/x
  3. Step 3: Cross multiply
    10,428.54x = 15,640.64 × 3,850.22
  4. Step 4: Simplify right side
    10,428.54x = 60,219,904.94
  5. Step 5: Solve for x
    x = 60,219,904.94/10,428.54
  6. Step 6: Final answer
    x = 5,774.53

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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.