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Finding the Fourth Proportional to 8,354.27, 11,528.17 and 4,769.21

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Solution

The fourth proportional to 8,354.27, 11,528.17 and 4,769.21 is: 6,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.27 : 11,528.17 = 4,769.21 : x
  2. Step 2: Convert to fraction form
    8,354.27/11,528.17 = 4,769.21/x
  3. Step 3: Cross multiply
    8,354.27x = 11,528.17 × 4,769.21
  4. Step 4: Simplify right side
    8,354.27x = 54,980,263.65
  5. Step 5: Solve for x
    x = 54,980,263.65/8,354.27
  6. Step 6: Final answer
    x = 6,581.10

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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.