Home / 8,122.48-12,181.89-3,735.72

Finding the Fourth Proportional to 8,122.48, 12,181.89 and 3,735.72

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Solution

The fourth proportional to 8,122.48, 12,181.89 and 3,735.72 is: 5,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.48 : 12,181.89 = 3,735.72 : x
  2. Step 2: Convert to fraction form
    8,122.48/12,181.89 = 3,735.72/x
  3. Step 3: Cross multiply
    8,122.48x = 12,181.89 × 3,735.72
  4. Step 4: Simplify right side
    8,122.48x = 45,508,130.11
  5. Step 5: Solve for x
    x = 45,508,130.11/8,122.48
  6. Step 6: Final answer
    x = 5,602.74

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1.5x scale

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.