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Finding the Fourth Proportional to 8,551.10, 11,808.66 and 8,085.16

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Solution

The fourth proportional to 8,551.10, 11,808.66 and 8,085.16 is: 11,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.10 : 11,808.66 = 8,085.16 : x
  2. Step 2: Convert to fraction form
    8,551.10/11,808.66 = 8,085.16/x
  3. Step 3: Cross multiply
    8,551.10x = 11,808.66 × 8,085.16
  4. Step 4: Simplify right side
    8,551.10x = 95,474,905.49
  5. Step 5: Solve for x
    x = 95,474,905.49/8,551.10
  6. Step 6: Final answer
    x = 11,165.22

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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.