Home / 18,090.11-24,965.68-10,921.79

Finding the Fourth Proportional to 18,090.11, 24,965.68 and 10,921.79

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Solution

The fourth proportional to 18,090.11, 24,965.68 and 10,921.79 is: 15,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.11 : 24,965.68 = 10,921.79 : x
  2. Step 2: Convert to fraction form
    18,090.11/24,965.68 = 10,921.79/x
  3. Step 3: Cross multiply
    18,090.11x = 24,965.68 × 10,921.79
  4. Step 4: Simplify right side
    18,090.11x = 272,669,969.76
  5. Step 5: Solve for x
    x = 272,669,969.76/18,090.11
  6. Step 6: Final answer
    x = 15,072.87

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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.