Home / 7,028.28-10,515.96-4,206.78

Finding the Fourth Proportional to 7,028.28, 10,515.96 and 4,206.78

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Solution

The fourth proportional to 7,028.28, 10,515.96 and 4,206.78 is: 6,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.28 : 10,515.96 = 4,206.78 : x
  2. Step 2: Convert to fraction form
    7,028.28/10,515.96 = 4,206.78/x
  3. Step 3: Cross multiply
    7,028.28x = 10,515.96 × 4,206.78
  4. Step 4: Simplify right side
    7,028.28x = 44,238,330.21
  5. Step 5: Solve for x
    x = 44,238,330.21/7,028.28
  6. Step 6: Final answer
    x = 6,294.33

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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.