Home / 9,178.14-12,664.92-5,198.46

Finding the Fourth Proportional to 9,178.14, 12,664.92 and 5,198.46

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Solution

The fourth proportional to 9,178.14, 12,664.92 and 5,198.46 is: 7,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.14 : 12,664.92 = 5,198.46 : x
  2. Step 2: Convert to fraction form
    9,178.14/12,664.92 = 5,198.46/x
  3. Step 3: Cross multiply
    9,178.14x = 12,664.92 × 5,198.46
  4. Step 4: Simplify right side
    9,178.14x = 65,838,080.02
  5. Step 5: Solve for x
    x = 65,838,080.02/9,178.14
  6. Step 6: Final answer
    x = 7,173.36

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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.