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Finding the Fourth Proportional to 8,085.68, 12,119.12 and 3,703.60

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Solution

The fourth proportional to 8,085.68, 12,119.12 and 3,703.60 is: 5,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.68 : 12,119.12 = 3,703.60 : x
  2. Step 2: Convert to fraction form
    8,085.68/12,119.12 = 3,703.60/x
  3. Step 3: Cross multiply
    8,085.68x = 12,119.12 × 3,703.60
  4. Step 4: Simplify right side
    8,085.68x = 44,884,372.83
  5. Step 5: Solve for x
    x = 44,884,372.83/8,085.68
  6. Step 6: Final answer
    x = 5,551.09

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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.