Home / 8,160.48-12,240.80-3,231.32

Finding the Fourth Proportional to 8,160.48, 12,240.80 and 3,231.32

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Solution

The fourth proportional to 8,160.48, 12,240.80 and 3,231.32 is: 4,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.48 : 12,240.80 = 3,231.32 : x
  2. Step 2: Convert to fraction form
    8,160.48/12,240.80 = 3,231.32/x
  3. Step 3: Cross multiply
    8,160.48x = 12,240.80 × 3,231.32
  4. Step 4: Simplify right side
    8,160.48x = 39,553,941.86
  5. Step 5: Solve for x
    x = 39,553,941.86/8,160.48
  6. Step 6: Final answer
    x = 4,847.01

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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.