Home / 11,145.02-15,379.58-6,671.22

Finding the Fourth Proportional to 11,145.02, 15,379.58 and 6,671.22

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Solution

The fourth proportional to 11,145.02, 15,379.58 and 6,671.22 is: 9,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.02 : 15,379.58 = 6,671.22 : x
  2. Step 2: Convert to fraction form
    11,145.02/15,379.58 = 6,671.22/x
  3. Step 3: Cross multiply
    11,145.02x = 15,379.58 × 6,671.22
  4. Step 4: Simplify right side
    11,145.02x = 102,600,528.33
  5. Step 5: Solve for x
    x = 102,600,528.33/11,145.02
  6. Step 6: Final answer
    x = 9,205.96

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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.