Home / 19,717.82-27,210.21-11,219.75

Finding the Fourth Proportional to 19,717.82, 27,210.21 and 11,219.75

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Solution

The fourth proportional to 19,717.82, 27,210.21 and 11,219.75 is: 15,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.82 : 27,210.21 = 11,219.75 : x
  2. Step 2: Convert to fraction form
    19,717.82/27,210.21 = 11,219.75/x
  3. Step 3: Cross multiply
    19,717.82x = 27,210.21 × 11,219.75
  4. Step 4: Simplify right side
    19,717.82x = 305,291,753.65
  5. Step 5: Solve for x
    x = 305,291,753.65/19,717.82
  6. Step 6: Final answer
    x = 15,483.04

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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.