Home / 8,611.10-11,880.26-5,628.66

Finding the Fourth Proportional to 8,611.10, 11,880.26 and 5,628.66

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Solution

The fourth proportional to 8,611.10, 11,880.26 and 5,628.66 is: 7,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.10 : 11,880.26 = 5,628.66 : x
  2. Step 2: Convert to fraction form
    8,611.10/11,880.26 = 5,628.66/x
  3. Step 3: Cross multiply
    8,611.10x = 11,880.26 × 5,628.66
  4. Step 4: Simplify right side
    8,611.10x = 66,869,856.71
  5. Step 5: Solve for x
    x = 66,869,856.71/8,611.10
  6. Step 6: Final answer
    x = 7,765.54

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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.