Home / 9,388.97-12,956.81-5,140.07

Finding the Fourth Proportional to 9,388.97, 12,956.81 and 5,140.07

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Solution

The fourth proportional to 9,388.97, 12,956.81 and 5,140.07 is: 7,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.97 : 12,956.81 = 5,140.07 : x
  2. Step 2: Convert to fraction form
    9,388.97/12,956.81 = 5,140.07/x
  3. Step 3: Cross multiply
    9,388.97x = 12,956.81 × 5,140.07
  4. Step 4: Simplify right side
    9,388.97x = 66,598,910.38
  5. Step 5: Solve for x
    x = 66,598,910.38/9,388.97
  6. Step 6: Final answer
    x = 7,093.31

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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.