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Finding the Fourth Proportional to 10,685.10, 16,027.65 and 2,893.90

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Solution

The fourth proportional to 10,685.10, 16,027.65 and 2,893.90 is: 4,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.10 : 16,027.65 = 2,893.90 : x
  2. Step 2: Convert to fraction form
    10,685.10/16,027.65 = 2,893.90/x
  3. Step 3: Cross multiply
    10,685.10x = 16,027.65 × 2,893.90
  4. Step 4: Simplify right side
    10,685.10x = 46,382,416.34
  5. Step 5: Solve for x
    x = 46,382,416.34/10,685.10
  6. Step 6: Final answer
    x = 4,340.85

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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.