Home / 8,564.12-11,815.02-5,205.68

Finding the Fourth Proportional to 8,564.12, 11,815.02 and 5,205.68

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Solution

The fourth proportional to 8,564.12, 11,815.02 and 5,205.68 is: 7,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.12 : 11,815.02 = 5,205.68 : x
  2. Step 2: Convert to fraction form
    8,564.12/11,815.02 = 5,205.68/x
  3. Step 3: Cross multiply
    8,564.12x = 11,815.02 × 5,205.68
  4. Step 4: Simplify right side
    8,564.12x = 61,505,213.31
  5. Step 5: Solve for x
    x = 61,505,213.31/8,564.12
  6. Step 6: Final answer
    x = 7,181.73

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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.