Home / 8,166.80-11,276.52-6,275.39

Finding the Fourth Proportional to 8,166.80, 11,276.52 and 6,275.39

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Solution

The fourth proportional to 8,166.80, 11,276.52 and 6,275.39 is: 8,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.80 : 11,276.52 = 6,275.39 : x
  2. Step 2: Convert to fraction form
    8,166.80/11,276.52 = 6,275.39/x
  3. Step 3: Cross multiply
    8,166.80x = 11,276.52 × 6,275.39
  4. Step 4: Simplify right side
    8,166.80x = 70,764,560.84
  5. Step 5: Solve for x
    x = 70,764,560.84/8,166.80
  6. Step 6: Final answer
    x = 8,664.91

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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.