Home / 11,008.15-15,193.57-7,028.57

Finding the Fourth Proportional to 11,008.15, 15,193.57 and 7,028.57

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Solution

The fourth proportional to 11,008.15, 15,193.57 and 7,028.57 is: 9,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.15 : 15,193.57 = 7,028.57 : x
  2. Step 2: Convert to fraction form
    11,008.15/15,193.57 = 7,028.57/x
  3. Step 3: Cross multiply
    11,008.15x = 15,193.57 × 7,028.57
  4. Step 4: Simplify right side
    11,008.15x = 106,789,035.15
  5. Step 5: Solve for x
    x = 106,789,035.15/11,008.15
  6. Step 6: Final answer
    x = 9,700.91

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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.