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Finding the Fourth Proportional to 8,576.07, 11,821.61 and 7,888.71

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Solution

The fourth proportional to 8,576.07, 11,821.61 and 7,888.71 is: 10,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.07 : 11,821.61 = 7,888.71 : x
  2. Step 2: Convert to fraction form
    8,576.07/11,821.61 = 7,888.71/x
  3. Step 3: Cross multiply
    8,576.07x = 11,821.61 × 7,888.71
  4. Step 4: Simplify right side
    8,576.07x = 93,257,213.58
  5. Step 5: Solve for x
    x = 93,257,213.58/8,576.07
  6. Step 6: Final answer
    x = 10,874.12

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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.