Home / 19,687.65-27,153.59-12,614.73

Finding the Fourth Proportional to 19,687.65, 27,153.59 and 12,614.73

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Solution

The fourth proportional to 19,687.65, 27,153.59 and 12,614.73 is: 17,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.65 : 27,153.59 = 12,614.73 : x
  2. Step 2: Convert to fraction form
    19,687.65/27,153.59 = 12,614.73/x
  3. Step 3: Cross multiply
    19,687.65x = 27,153.59 × 12,614.73
  4. Step 4: Simplify right side
    19,687.65x = 342,535,206.38
  5. Step 5: Solve for x
    x = 342,535,206.38/19,687.65
  6. Step 6: Final answer
    x = 17,398.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.