Home / 7,490.26-11,221.21-4,205.71

Finding the Fourth Proportional to 7,490.26, 11,221.21 and 4,205.71

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Solution

The fourth proportional to 7,490.26, 11,221.21 and 4,205.71 is: 6,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.26 : 11,221.21 = 4,205.71 : x
  2. Step 2: Convert to fraction form
    7,490.26/11,221.21 = 4,205.71/x
  3. Step 3: Cross multiply
    7,490.26x = 11,221.21 × 4,205.71
  4. Step 4: Simplify right side
    7,490.26x = 47,193,155.11
  5. Step 5: Solve for x
    x = 47,193,155.11/7,490.26
  6. Step 6: Final answer
    x = 6,300.60

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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.