Home / 8,120.15-11,204.73-4,937.15

Finding the Fourth Proportional to 8,120.15, 11,204.73 and 4,937.15

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Solution

The fourth proportional to 8,120.15, 11,204.73 and 4,937.15 is: 6,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.15 : 11,204.73 = 4,937.15 : x
  2. Step 2: Convert to fraction form
    8,120.15/11,204.73 = 4,937.15/x
  3. Step 3: Cross multiply
    8,120.15x = 11,204.73 × 4,937.15
  4. Step 4: Simplify right side
    8,120.15x = 55,319,460.73
  5. Step 5: Solve for x
    x = 55,319,460.73/8,120.15
  6. Step 6: Final answer
    x = 6,812.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.