Home / 7,488.21-11,217.28-3,728.66

Finding the Fourth Proportional to 7,488.21, 11,217.28 and 3,728.66

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Solution

The fourth proportional to 7,488.21, 11,217.28 and 3,728.66 is: 5,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.21 : 11,217.28 = 3,728.66 : x
  2. Step 2: Convert to fraction form
    7,488.21/11,217.28 = 3,728.66/x
  3. Step 3: Cross multiply
    7,488.21x = 11,217.28 × 3,728.66
  4. Step 4: Simplify right side
    7,488.21x = 41,825,423.24
  5. Step 5: Solve for x
    x = 41,825,423.24/7,488.21
  6. Step 6: Final answer
    x = 5,585.50

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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.