Home / 10,611.18-15,915.98-4,286.50

Finding the Fourth Proportional to 10,611.18, 15,915.98 and 4,286.50

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Solution

The fourth proportional to 10,611.18, 15,915.98 and 4,286.50 is: 6,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.18 : 15,915.98 = 4,286.50 : x
  2. Step 2: Convert to fraction form
    10,611.18/15,915.98 = 4,286.50/x
  3. Step 3: Cross multiply
    10,611.18x = 15,915.98 × 4,286.50
  4. Step 4: Simplify right side
    10,611.18x = 68,223,819.20
  5. Step 5: Solve for x
    x = 68,223,819.20/10,611.18
  6. Step 6: Final answer
    x = 6,429.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.