Home / 10,611.66-15,895.61-6,215.79

Finding the Fourth Proportional to 10,611.66, 15,895.61 and 6,215.79

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Solution

The fourth proportional to 10,611.66, 15,895.61 and 6,215.79 is: 9,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.66 : 15,895.61 = 6,215.79 : x
  2. Step 2: Convert to fraction form
    10,611.66/15,895.61 = 6,215.79/x
  3. Step 3: Cross multiply
    10,611.66x = 15,895.61 × 6,215.79
  4. Step 4: Simplify right side
    10,611.66x = 98,803,678.66
  5. Step 5: Solve for x
    x = 98,803,678.66/10,611.66
  6. Step 6: Final answer
    x = 9,310.86

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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.