Home / 8,285.16-11,449.86-6,790.68

Finding the Fourth Proportional to 8,285.16, 11,449.86 and 6,790.68

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Solution

The fourth proportional to 8,285.16, 11,449.86 and 6,790.68 is: 9,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.16 : 11,449.86 = 6,790.68 : x
  2. Step 2: Convert to fraction form
    8,285.16/11,449.86 = 6,790.68/x
  3. Step 3: Cross multiply
    8,285.16x = 11,449.86 × 6,790.68
  4. Step 4: Simplify right side
    8,285.16x = 77,752,335.30
  5. Step 5: Solve for x
    x = 77,752,335.30/8,285.16
  6. Step 6: Final answer
    x = 9,384.53

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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.