Home / 8,312.06-12,470.44-3,385.24

Finding the Fourth Proportional to 8,312.06, 12,470.44 and 3,385.24

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Solution

The fourth proportional to 8,312.06, 12,470.44 and 3,385.24 is: 5,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.06 : 12,470.44 = 3,385.24 : x
  2. Step 2: Convert to fraction form
    8,312.06/12,470.44 = 3,385.24/x
  3. Step 3: Cross multiply
    8,312.06x = 12,470.44 × 3,385.24
  4. Step 4: Simplify right side
    8,312.06x = 42,215,392.67
  5. Step 5: Solve for x
    x = 42,215,392.67/8,312.06
  6. Step 6: Final answer
    x = 5,078.81

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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.