Home / 11,238.64-15,511.68-7,462.12

Finding the Fourth Proportional to 11,238.64, 15,511.68 and 7,462.12

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Solution

The fourth proportional to 11,238.64, 15,511.68 and 7,462.12 is: 10,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.64 : 15,511.68 = 7,462.12 : x
  2. Step 2: Convert to fraction form
    11,238.64/15,511.68 = 7,462.12/x
  3. Step 3: Cross multiply
    11,238.64x = 15,511.68 × 7,462.12
  4. Step 4: Simplify right side
    11,238.64x = 115,750,017.56
  5. Step 5: Solve for x
    x = 115,750,017.56/11,238.64
  6. Step 6: Final answer
    x = 10,299.29

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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.