Home / 19,662.12-27,133.56-13,697.10

Finding the Fourth Proportional to 19,662.12, 27,133.56 and 13,697.10

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Solution

The fourth proportional to 19,662.12, 27,133.56 and 13,697.10 is: 18,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.12 : 27,133.56 = 13,697.10 : x
  2. Step 2: Convert to fraction form
    19,662.12/27,133.56 = 13,697.10/x
  3. Step 3: Cross multiply
    19,662.12x = 27,133.56 × 13,697.10
  4. Step 4: Simplify right side
    19,662.12x = 371,651,084.68
  5. Step 5: Solve for x
    x = 371,651,084.68/19,662.12
  6. Step 6: Final answer
    x = 18,901.88

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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.