Home / 11,513.08-15,882.30-7,269.40

Finding the Fourth Proportional to 11,513.08, 15,882.30 and 7,269.40

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Solution

The fourth proportional to 11,513.08, 15,882.30 and 7,269.40 is: 10,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.08 : 15,882.30 = 7,269.40 : x
  2. Step 2: Convert to fraction form
    11,513.08/15,882.30 = 7,269.40/x
  3. Step 3: Cross multiply
    11,513.08x = 15,882.30 × 7,269.40
  4. Step 4: Simplify right side
    11,513.08x = 115,454,791.62
  5. Step 5: Solve for x
    x = 115,454,791.62/11,513.08
  6. Step 6: Final answer
    x = 10,028.14

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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.