Home / 11,181.20-15,429.15-6,145.29

Finding the Fourth Proportional to 11,181.20, 15,429.15 and 6,145.29

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Solution

The fourth proportional to 11,181.20, 15,429.15 and 6,145.29 is: 8,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.20 : 15,429.15 = 6,145.29 : x
  2. Step 2: Convert to fraction form
    11,181.20/15,429.15 = 6,145.29/x
  3. Step 3: Cross multiply
    11,181.20x = 15,429.15 × 6,145.29
  4. Step 4: Simplify right side
    11,181.20x = 94,816,601.20
  5. Step 5: Solve for x
    x = 94,816,601.20/11,181.20
  6. Step 6: Final answer
    x = 8,480.01

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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.