Home / 13,915.56-19,204.41-7,863.70

Finding the Fourth Proportional to 13,915.56, 19,204.41 and 7,863.70

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Solution

The fourth proportional to 13,915.56, 19,204.41 and 7,863.70 is: 10,852.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.56 : 19,204.41 = 7,863.70 : x
  2. Step 2: Convert to fraction form
    13,915.56/19,204.41 = 7,863.70/x
  3. Step 3: Cross multiply
    13,915.56x = 19,204.41 × 7,863.70
  4. Step 4: Simplify right side
    13,915.56x = 151,017,718.92
  5. Step 5: Solve for x
    x = 151,017,718.92/13,915.56
  6. Step 6: Final answer
    x = 10,852.44

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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.