Home / 10,933.83-15,083.15-7,163.30

Finding the Fourth Proportional to 10,933.83, 15,083.15 and 7,163.30

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Solution

The fourth proportional to 10,933.83, 15,083.15 and 7,163.30 is: 9,881.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.83 : 15,083.15 = 7,163.30 : x
  2. Step 2: Convert to fraction form
    10,933.83/15,083.15 = 7,163.30/x
  3. Step 3: Cross multiply
    10,933.83x = 15,083.15 × 7,163.30
  4. Step 4: Simplify right side
    10,933.83x = 108,045,130.29
  5. Step 5: Solve for x
    x = 108,045,130.29/10,933.83
  6. Step 6: Final answer
    x = 9,881.73

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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.