Home / 10,515.06-15,756.09-6,611.27

Finding the Fourth Proportional to 10,515.06, 15,756.09 and 6,611.27

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Solution

The fourth proportional to 10,515.06, 15,756.09 and 6,611.27 is: 9,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.06 : 15,756.09 = 6,611.27 : x
  2. Step 2: Convert to fraction form
    10,515.06/15,756.09 = 6,611.27/x
  3. Step 3: Cross multiply
    10,515.06x = 15,756.09 × 6,611.27
  4. Step 4: Simplify right side
    10,515.06x = 104,167,661.56
  5. Step 5: Solve for x
    x = 104,167,661.56/10,515.06
  6. Step 6: Final answer
    x = 9,906.52

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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.