Home / 7,474.29-11,207.78-4,268.21

Finding the Fourth Proportional to 7,474.29, 11,207.78 and 4,268.21

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Solution

The fourth proportional to 7,474.29, 11,207.78 and 4,268.21 is: 6,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.29 : 11,207.78 = 4,268.21 : x
  2. Step 2: Convert to fraction form
    7,474.29/11,207.78 = 4,268.21/x
  3. Step 3: Cross multiply
    7,474.29x = 11,207.78 × 4,268.21
  4. Step 4: Simplify right side
    7,474.29x = 47,837,184.35
  5. Step 5: Solve for x
    x = 47,837,184.35/7,474.29
  6. Step 6: Final answer
    x = 6,400.23

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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.