Home / 12,181.25-16,808.69-6,875.75

Finding the Fourth Proportional to 12,181.25, 16,808.69 and 6,875.75

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Solution

The fourth proportional to 12,181.25, 16,808.69 and 6,875.75 is: 9,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.25 : 16,808.69 = 6,875.75 : x
  2. Step 2: Convert to fraction form
    12,181.25/16,808.69 = 6,875.75/x
  3. Step 3: Cross multiply
    12,181.25x = 16,808.69 × 6,875.75
  4. Step 4: Simplify right side
    12,181.25x = 115,572,350.27
  5. Step 5: Solve for x
    x = 115,572,350.27/12,181.25
  6. Step 6: Final answer
    x = 9,487.73

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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.