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Finding the Fourth Proportional to 8,453, 11,665.14 and 4,727

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Solution

The fourth proportional to 8,453, 11,665.14 and 4,727 is: 6,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453 : 11,665.14 = 4,727 : x
  2. Step 2: Convert to fraction form
    8,453/11,665.14 = 4,727/x
  3. Step 3: Cross multiply
    8,453x = 11,665.14 × 4,727
  4. Step 4: Simplify right side
    8,453x = 55,141,116.78
  5. Step 5: Solve for x
    x = 55,141,116.78/8,453
  6. Step 6: Final answer
    x = 6,523.26

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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.