Home / 11,201.81-15,425.12-10,953.18

Finding the Fourth Proportional to 11,201.81, 15,425.12 and 10,953.18

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Solution

The fourth proportional to 11,201.81, 15,425.12 and 10,953.18 is: 15,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.81 : 15,425.12 = 10,953.18 : x
  2. Step 2: Convert to fraction form
    11,201.81/15,425.12 = 10,953.18/x
  3. Step 3: Cross multiply
    11,201.81x = 15,425.12 × 10,953.18
  4. Step 4: Simplify right side
    11,201.81x = 168,954,115.88
  5. Step 5: Solve for x
    x = 168,954,115.88/11,201.81
  6. Step 6: Final answer
    x = 15,082.76

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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.