Home / 12,386.28-17,091.94-7,349.64

Finding the Fourth Proportional to 12,386.28, 17,091.94 and 7,349.64

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Solution

The fourth proportional to 12,386.28, 17,091.94 and 7,349.64 is: 10,141.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.28 : 17,091.94 = 7,349.64 : x
  2. Step 2: Convert to fraction form
    12,386.28/17,091.94 = 7,349.64/x
  3. Step 3: Cross multiply
    12,386.28x = 17,091.94 × 7,349.64
  4. Step 4: Simplify right side
    12,386.28x = 125,619,520.44
  5. Step 5: Solve for x
    x = 125,619,520.44/12,386.28
  6. Step 6: Final answer
    x = 10,141.83

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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.