Home / 8,109.02-12,134.60-5,890.44

Finding the Fourth Proportional to 8,109.02, 12,134.60 and 5,890.44

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Solution

The fourth proportional to 8,109.02, 12,134.60 and 5,890.44 is: 8,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.02 : 12,134.60 = 5,890.44 : x
  2. Step 2: Convert to fraction form
    8,109.02/12,134.60 = 5,890.44/x
  3. Step 3: Cross multiply
    8,109.02x = 12,134.60 × 5,890.44
  4. Step 4: Simplify right side
    8,109.02x = 71,478,133.22
  5. Step 5: Solve for x
    x = 71,478,133.22/8,109.02
  6. Step 6: Final answer
    x = 8,814.65

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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.