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Finding the Fourth Proportional to 9,167.10, 13,734.45 and 8,130.30

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Solution

The fourth proportional to 9,167.10, 13,734.45 and 8,130.30 is: 12,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.10 : 13,734.45 = 8,130.30 : x
  2. Step 2: Convert to fraction form
    9,167.10/13,734.45 = 8,130.30/x
  3. Step 3: Cross multiply
    9,167.10x = 13,734.45 × 8,130.30
  4. Step 4: Simplify right side
    9,167.10x = 111,665,198.84
  5. Step 5: Solve for x
    x = 111,665,198.84/9,167.10
  6. Step 6: Final answer
    x = 12,181.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.