Home / 8,650.74-11,943.80-5,115.09

Finding the Fourth Proportional to 8,650.74, 11,943.80 and 5,115.09

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Solution

The fourth proportional to 8,650.74, 11,943.80 and 5,115.09 is: 7,062.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.74 : 11,943.80 = 5,115.09 : x
  2. Step 2: Convert to fraction form
    8,650.74/11,943.80 = 5,115.09/x
  3. Step 3: Cross multiply
    8,650.74x = 11,943.80 × 5,115.09
  4. Step 4: Simplify right side
    8,650.74x = 61,093,611.94
  5. Step 5: Solve for x
    x = 61,093,611.94/8,650.74
  6. Step 6: Final answer
    x = 7,062.24

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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.