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Finding the Fourth Proportional to 8,866.38, 13,282.94 and 7,953.50

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Solution

The fourth proportional to 8,866.38, 13,282.94 and 7,953.50 is: 11,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.38 : 13,282.94 = 7,953.50 : x
  2. Step 2: Convert to fraction form
    8,866.38/13,282.94 = 7,953.50/x
  3. Step 3: Cross multiply
    8,866.38x = 13,282.94 × 7,953.50
  4. Step 4: Simplify right side
    8,866.38x = 105,645,863.29
  5. Step 5: Solve for x
    x = 105,645,863.29/8,866.38
  6. Step 6: Final answer
    x = 11,915.33

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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.