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Finding the Fourth Proportional to 9,165.78, 13,750.73 and 2,926.15

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Solution

The fourth proportional to 9,165.78, 13,750.73 and 2,926.15 is: 4,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.78 : 13,750.73 = 2,926.15 : x
  2. Step 2: Convert to fraction form
    9,165.78/13,750.73 = 2,926.15/x
  3. Step 3: Cross multiply
    9,165.78x = 13,750.73 × 2,926.15
  4. Step 4: Simplify right side
    9,165.78x = 40,236,698.59
  5. Step 5: Solve for x
    x = 40,236,698.59/9,165.78
  6. Step 6: Final answer
    x = 4,389.88

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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.