Home / 18,076.79-27,112.62-6,988.70

Finding the Fourth Proportional to 18,076.79, 27,112.62 and 6,988.70

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Solution

The fourth proportional to 18,076.79, 27,112.62 and 6,988.70 is: 10,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.79 : 27,112.62 = 6,988.70 : x
  2. Step 2: Convert to fraction form
    18,076.79/27,112.62 = 6,988.70/x
  3. Step 3: Cross multiply
    18,076.79x = 27,112.62 × 6,988.70
  4. Step 4: Simplify right side
    18,076.79x = 189,481,967.39
  5. Step 5: Solve for x
    x = 189,481,967.39/18,076.79
  6. Step 6: Final answer
    x = 10,482.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.