Home / 8,179.17-11,285.89-7,764.04

Finding the Fourth Proportional to 8,179.17, 11,285.89 and 7,764.04

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Solution

The fourth proportional to 8,179.17, 11,285.89 and 7,764.04 is: 10,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.17 : 11,285.89 = 7,764.04 : x
  2. Step 2: Convert to fraction form
    8,179.17/11,285.89 = 7,764.04/x
  3. Step 3: Cross multiply
    8,179.17x = 11,285.89 × 7,764.04
  4. Step 4: Simplify right side
    8,179.17x = 87,624,101.40
  5. Step 5: Solve for x
    x = 87,624,101.40/8,179.17
  6. Step 6: Final answer
    x = 10,713.08

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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.