Home / 7,653.21-11,480.91-2,721.68

Finding the Fourth Proportional to 7,653.21, 11,480.91 and 2,721.68

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Solution

The fourth proportional to 7,653.21, 11,480.91 and 2,721.68 is: 4,082.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.21 : 11,480.91 = 2,721.68 : x
  2. Step 2: Convert to fraction form
    7,653.21/11,480.91 = 2,721.68/x
  3. Step 3: Cross multiply
    7,653.21x = 11,480.91 × 2,721.68
  4. Step 4: Simplify right side
    7,653.21x = 31,247,329.25
  5. Step 5: Solve for x
    x = 31,247,329.25/7,653.21
  6. Step 6: Final answer
    x = 4,082.91

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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.