Home / 19,820.52-27,351.43-11,867.13

Finding the Fourth Proportional to 19,820.52, 27,351.43 and 11,867.13

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Solution

The fourth proportional to 19,820.52, 27,351.43 and 11,867.13 is: 16,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.52 : 27,351.43 = 11,867.13 : x
  2. Step 2: Convert to fraction form
    19,820.52/27,351.43 = 11,867.13/x
  3. Step 3: Cross multiply
    19,820.52x = 27,351.43 × 11,867.13
  4. Step 4: Simplify right side
    19,820.52x = 324,582,975.50
  5. Step 5: Solve for x
    x = 324,582,975.50/19,820.52
  6. Step 6: Final answer
    x = 16,376.11

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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.