Home / 9,721.65-14,584.80-3,147.84

Finding the Fourth Proportional to 9,721.65, 14,584.80 and 3,147.84

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Solution

The fourth proportional to 9,721.65, 14,584.80 and 3,147.84 is: 4,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.65 : 14,584.80 = 3,147.84 : x
  2. Step 2: Convert to fraction form
    9,721.65/14,584.80 = 3,147.84/x
  3. Step 3: Cross multiply
    9,721.65x = 14,584.80 × 3,147.84
  4. Step 4: Simplify right side
    9,721.65x = 45,910,616.83
  5. Step 5: Solve for x
    x = 45,910,616.83/9,721.65
  6. Step 6: Final answer
    x = 4,722.51

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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.