Home / 8,189.02-11,376.63-8,112.02

Finding the Fourth Proportional to 8,189.02, 11,376.63 and 8,112.02

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Solution

The fourth proportional to 8,189.02, 11,376.63 and 8,112.02 is: 11,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.02 : 11,376.63 = 8,112.02 : x
  2. Step 2: Convert to fraction form
    8,189.02/11,376.63 = 8,112.02/x
  3. Step 3: Cross multiply
    8,189.02x = 11,376.63 × 8,112.02
  4. Step 4: Simplify right side
    8,189.02x = 92,287,393.21
  5. Step 5: Solve for x
    x = 92,287,393.21/8,189.02
  6. Step 6: Final answer
    x = 11,269.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.