Home / 11,479.64-15,843.57-6,445.94

Finding the Fourth Proportional to 11,479.64, 15,843.57 and 6,445.94

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Solution

The fourth proportional to 11,479.64, 15,843.57 and 6,445.94 is: 8,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.64 : 15,843.57 = 6,445.94 : x
  2. Step 2: Convert to fraction form
    11,479.64/15,843.57 = 6,445.94/x
  3. Step 3: Cross multiply
    11,479.64x = 15,843.57 × 6,445.94
  4. Step 4: Simplify right side
    11,479.64x = 102,126,701.61
  5. Step 5: Solve for x
    x = 102,126,701.61/11,479.64
  6. Step 6: Final answer
    x = 8,896.33

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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.