Home / 11,915.88-16,445.33-6,881.32

Finding the Fourth Proportional to 11,915.88, 16,445.33 and 6,881.32

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Solution

The fourth proportional to 11,915.88, 16,445.33 and 6,881.32 is: 9,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.88 : 16,445.33 = 6,881.32 : x
  2. Step 2: Convert to fraction form
    11,915.88/16,445.33 = 6,881.32/x
  3. Step 3: Cross multiply
    11,915.88x = 16,445.33 × 6,881.32
  4. Step 4: Simplify right side
    11,915.88x = 113,165,578.24
  5. Step 5: Solve for x
    x = 113,165,578.24/11,915.88
  6. Step 6: Final answer
    x = 9,497.04

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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.