Home / 11,114.24-15,330.41-7,129.04

Finding the Fourth Proportional to 11,114.24, 15,330.41 and 7,129.04

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Solution

The fourth proportional to 11,114.24, 15,330.41 and 7,129.04 is: 9,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.24 : 15,330.41 = 7,129.04 : x
  2. Step 2: Convert to fraction form
    11,114.24/15,330.41 = 7,129.04/x
  3. Step 3: Cross multiply
    11,114.24x = 15,330.41 × 7,129.04
  4. Step 4: Simplify right side
    11,114.24x = 109,290,993.81
  5. Step 5: Solve for x
    x = 109,290,993.81/11,114.24
  6. Step 6: Final answer
    x = 9,833.42

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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.