Home / 9,721.36-14,583.39-3,145.42

Finding the Fourth Proportional to 9,721.36, 14,583.39 and 3,145.42

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Solution

The fourth proportional to 9,721.36, 14,583.39 and 3,145.42 is: 4,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.36 : 14,583.39 = 3,145.42 : x
  2. Step 2: Convert to fraction form
    9,721.36/14,583.39 = 3,145.42/x
  3. Step 3: Cross multiply
    9,721.36x = 14,583.39 × 3,145.42
  4. Step 4: Simplify right side
    9,721.36x = 45,870,886.57
  5. Step 5: Solve for x
    x = 45,870,886.57/9,721.36
  6. Step 6: Final answer
    x = 4,718.57

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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.