Home / 11,181.74-15,429.79-6,145.90

Finding the Fourth Proportional to 11,181.74, 15,429.79 and 6,145.90

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Solution

The fourth proportional to 11,181.74, 15,429.79 and 6,145.90 is: 8,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.74 : 15,429.79 = 6,145.90 : x
  2. Step 2: Convert to fraction form
    11,181.74/15,429.79 = 6,145.90/x
  3. Step 3: Cross multiply
    11,181.74x = 15,429.79 × 6,145.90
  4. Step 4: Simplify right side
    11,181.74x = 94,829,946.36
  5. Step 5: Solve for x
    x = 94,829,946.36/11,181.74
  6. Step 6: Final answer
    x = 8,480.79

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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.