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Finding the Fourth Proportional to 7,933, 11,959.15 and 7,397.86

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Solution

The fourth proportional to 7,933, 11,959.15 and 7,397.86 is: 11,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933 : 11,959.15 = 7,397.86 : x
  2. Step 2: Convert to fraction form
    7,933/11,959.15 = 7,397.86/x
  3. Step 3: Cross multiply
    7,933x = 11,959.15 × 7,397.86
  4. Step 4: Simplify right side
    7,933x = 88,472,117.42
  5. Step 5: Solve for x
    x = 88,472,117.42/7,933
  6. Step 6: Final answer
    x = 11,152.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.