Home / 9,356.14-12,911.43-5,164.39

Finding the Fourth Proportional to 9,356.14, 12,911.43 and 5,164.39

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Solution

The fourth proportional to 9,356.14, 12,911.43 and 5,164.39 is: 7,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,356.14 : 12,911.43 = 5,164.39 : x
  2. Step 2: Convert to fraction form
    9,356.14/12,911.43 = 5,164.39/x
  3. Step 3: Cross multiply
    9,356.14x = 12,911.43 × 5,164.39
  4. Step 4: Simplify right side
    9,356.14x = 66,679,659.98
  5. Step 5: Solve for x
    x = 66,679,659.98/9,356.14
  6. Step 6: Final answer
    x = 7,126.83

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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.