Home / 10,611.53-15,895.42-6,215.66

Finding the Fourth Proportional to 10,611.53, 15,895.42 and 6,215.66

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Solution

The fourth proportional to 10,611.53, 15,895.42 and 6,215.66 is: 9,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.53 : 15,895.42 = 6,215.66 : x
  2. Step 2: Convert to fraction form
    10,611.53/15,895.42 = 6,215.66/x
  3. Step 3: Cross multiply
    10,611.53x = 15,895.42 × 6,215.66
  4. Step 4: Simplify right side
    10,611.53x = 98,800,526.28
  5. Step 5: Solve for x
    x = 98,800,526.28/10,611.53
  6. Step 6: Final answer
    x = 9,310.68

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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.