Home / 8,160.48-12,231.84-3,771.36

Finding the Fourth Proportional to 8,160.48, 12,231.84 and 3,771.36

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Solution

The fourth proportional to 8,160.48, 12,231.84 and 3,771.36 is: 5,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.48 : 12,231.84 = 3,771.36 : x
  2. Step 2: Convert to fraction form
    8,160.48/12,231.84 = 3,771.36/x
  3. Step 3: Cross multiply
    8,160.48x = 12,231.84 × 3,771.36
  4. Step 4: Simplify right side
    8,160.48x = 46,130,672.10
  5. Step 5: Solve for x
    x = 46,130,672.10/8,160.48
  6. Step 6: Final answer
    x = 5,652.94

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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.