Home / 12,721.74-19,082.61-3,957.18

Finding the Fourth Proportional to 12,721.74, 19,082.61 and 3,957.18

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Solution

The fourth proportional to 12,721.74, 19,082.61 and 3,957.18 is: 5,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.74 : 19,082.61 = 3,957.18 : x
  2. Step 2: Convert to fraction form
    12,721.74/19,082.61 = 3,957.18/x
  3. Step 3: Cross multiply
    12,721.74x = 19,082.61 × 3,957.18
  4. Step 4: Simplify right side
    12,721.74x = 75,513,322.64
  5. Step 5: Solve for x
    x = 75,513,322.64/12,721.74
  6. Step 6: Final answer
    x = 5,935.77

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Similar ratio
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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.