Home / 11,915.49-16,444.32-6,611.34

Finding the Fourth Proportional to 11,915.49, 16,444.32 and 6,611.34

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Solution

The fourth proportional to 11,915.49, 16,444.32 and 6,611.34 is: 9,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.49 : 16,444.32 = 6,611.34 : x
  2. Step 2: Convert to fraction form
    11,915.49/16,444.32 = 6,611.34/x
  3. Step 3: Cross multiply
    11,915.49x = 16,444.32 × 6,611.34
  4. Step 4: Simplify right side
    11,915.49x = 108,718,990.59
  5. Step 5: Solve for x
    x = 108,718,990.59/11,915.49
  6. Step 6: Final answer
    x = 9,124.17

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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.