Home / 18,386.12-27,579.20-10,992.70

Finding the Fourth Proportional to 18,386.12, 27,579.20 and 10,992.70

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Solution

The fourth proportional to 18,386.12, 27,579.20 and 10,992.70 is: 16,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.12 : 27,579.20 = 10,992.70 : x
  2. Step 2: Convert to fraction form
    18,386.12/27,579.20 = 10,992.70/x
  3. Step 3: Cross multiply
    18,386.12x = 27,579.20 × 10,992.70
  4. Step 4: Simplify right side
    18,386.12x = 303,169,871.84
  5. Step 5: Solve for x
    x = 303,169,871.84/18,386.12
  6. Step 6: Final answer
    x = 16,489.06

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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.