Home / 11,005.14-15,163.30-7,462.20

Finding the Fourth Proportional to 11,005.14, 15,163.30 and 7,462.20

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Solution

The fourth proportional to 11,005.14, 15,163.30 and 7,462.20 is: 10,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.14 : 15,163.30 = 7,462.20 : x
  2. Step 2: Convert to fraction form
    11,005.14/15,163.30 = 7,462.20/x
  3. Step 3: Cross multiply
    11,005.14x = 15,163.30 × 7,462.20
  4. Step 4: Simplify right side
    11,005.14x = 113,151,577.26
  5. Step 5: Solve for x
    x = 113,151,577.26/11,005.14
  6. Step 6: Final answer
    x = 10,281.70

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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.