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Finding the Fourth Proportional to 8,670.33, 11,965 and 4,894.72

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Solution

The fourth proportional to 8,670.33, 11,965 and 4,894.72 is: 6,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.33 : 11,965 = 4,894.72 : x
  2. Step 2: Convert to fraction form
    8,670.33/11,965 = 4,894.72/x
  3. Step 3: Cross multiply
    8,670.33x = 11,965 × 4,894.72
  4. Step 4: Simplify right side
    8,670.33x = 58,565,324.80
  5. Step 5: Solve for x
    x = 58,565,324.80/8,670.33
  6. Step 6: Final answer
    x = 6,754.68

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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.