Home / 19,797.66-27,321.12-13,512.06

Finding the Fourth Proportional to 19,797.66, 27,321.12 and 13,512.06

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Solution

The fourth proportional to 19,797.66, 27,321.12 and 13,512.06 is: 18,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.66 : 27,321.12 = 13,512.06 : x
  2. Step 2: Convert to fraction form
    19,797.66/27,321.12 = 13,512.06/x
  3. Step 3: Cross multiply
    19,797.66x = 27,321.12 × 13,512.06
  4. Step 4: Simplify right side
    19,797.66x = 369,164,612.71
  5. Step 5: Solve for x
    x = 369,164,612.71/19,797.66
  6. Step 6: Final answer
    x = 18,646.88

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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.