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Finding the Fourth Proportional to 7,842.18, 11,747.07 and 6,284.82

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Solution

The fourth proportional to 7,842.18, 11,747.07 and 6,284.82 is: 9,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.18 : 11,747.07 = 6,284.82 : x
  2. Step 2: Convert to fraction form
    7,842.18/11,747.07 = 6,284.82/x
  3. Step 3: Cross multiply
    7,842.18x = 11,747.07 × 6,284.82
  4. Step 4: Simplify right side
    7,842.18x = 73,828,220.48
  5. Step 5: Solve for x
    x = 73,828,220.48/7,842.18
  6. Step 6: Final answer
    x = 9,414.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.