Home / 8,148.73-11,255.40-6,282.96

Finding the Fourth Proportional to 8,148.73, 11,255.40 and 6,282.96

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Solution

The fourth proportional to 8,148.73, 11,255.40 and 6,282.96 is: 8,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.73 : 11,255.40 = 6,282.96 : x
  2. Step 2: Convert to fraction form
    8,148.73/11,255.40 = 6,282.96/x
  3. Step 3: Cross multiply
    8,148.73x = 11,255.40 × 6,282.96
  4. Step 4: Simplify right side
    8,148.73x = 70,717,227.98
  5. Step 5: Solve for x
    x = 70,717,227.98/8,148.73
  6. Step 6: Final answer
    x = 8,678.31

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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.