Home / 9,721.35-14,578.97-3,146.18

Finding the Fourth Proportional to 9,721.35, 14,578.97 and 3,146.18

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Solution

The fourth proportional to 9,721.35, 14,578.97 and 3,146.18 is: 4,718.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.35 : 14,578.97 = 3,146.18 : x
  2. Step 2: Convert to fraction form
    9,721.35/14,578.97 = 3,146.18/x
  3. Step 3: Cross multiply
    9,721.35x = 14,578.97 × 3,146.18
  4. Step 4: Simplify right side
    9,721.35x = 45,867,975.21
  5. Step 5: Solve for x
    x = 45,867,975.21/9,721.35
  6. Step 6: Final answer
    x = 4,718.27

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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.