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Finding the Fourth Proportional to 7,951, 11,927.06 and 2,685.72

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Solution

The fourth proportional to 7,951, 11,927.06 and 2,685.72 is: 4,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951 : 11,927.06 = 2,685.72 : x
  2. Step 2: Convert to fraction form
    7,951/11,927.06 = 2,685.72/x
  3. Step 3: Cross multiply
    7,951x = 11,927.06 × 2,685.72
  4. Step 4: Simplify right side
    7,951x = 32,032,743.58
  5. Step 5: Solve for x
    x = 32,032,743.58/7,951
  6. Step 6: Final answer
    x = 4,028.77

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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.