Home / 19,678.62-27,151.83-11,180.91

Finding the Fourth Proportional to 19,678.62, 27,151.83 and 11,180.91

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Solution

The fourth proportional to 19,678.62, 27,151.83 and 11,180.91 is: 15,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.62 : 27,151.83 = 11,180.91 : x
  2. Step 2: Convert to fraction form
    19,678.62/27,151.83 = 11,180.91/x
  3. Step 3: Cross multiply
    19,678.62x = 27,151.83 × 11,180.91
  4. Step 4: Simplify right side
    19,678.62x = 303,582,167.57
  5. Step 5: Solve for x
    x = 303,582,167.57/19,678.62
  6. Step 6: Final answer
    x = 15,427.00

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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.