Home / 7,617.74-11,426.60-4,286.21

Finding the Fourth Proportional to 7,617.74, 11,426.60 and 4,286.21

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Solution

The fourth proportional to 7,617.74, 11,426.60 and 4,286.21 is: 6,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.74 : 11,426.60 = 4,286.21 : x
  2. Step 2: Convert to fraction form
    7,617.74/11,426.60 = 4,286.21/x
  3. Step 3: Cross multiply
    7,617.74x = 11,426.60 × 4,286.21
  4. Step 4: Simplify right side
    7,617.74x = 48,976,760.77
  5. Step 5: Solve for x
    x = 48,976,760.77/7,617.74
  6. Step 6: Final answer
    x = 6,429.31

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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.