Home / 19,763.28-27,272.70-11,803.68

Finding the Fourth Proportional to 19,763.28, 27,272.70 and 11,803.68

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Solution

The fourth proportional to 19,763.28, 27,272.70 and 11,803.68 is: 16,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.28 : 27,272.70 = 11,803.68 : x
  2. Step 2: Convert to fraction form
    19,763.28/27,272.70 = 11,803.68/x
  3. Step 3: Cross multiply
    19,763.28x = 27,272.70 × 11,803.68
  4. Step 4: Simplify right side
    19,763.28x = 321,918,223.54
  5. Step 5: Solve for x
    x = 321,918,223.54/19,763.28
  6. Step 6: Final answer
    x = 16,288.70

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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.