Home / 12,181.41-16,809.14-6,875.21

Finding the Fourth Proportional to 12,181.41, 16,809.14 and 6,875.21

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Solution

The fourth proportional to 12,181.41, 16,809.14 and 6,875.21 is: 9,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.41 : 16,809.14 = 6,875.21 : x
  2. Step 2: Convert to fraction form
    12,181.41/16,809.14 = 6,875.21/x
  3. Step 3: Cross multiply
    12,181.41x = 16,809.14 × 6,875.21
  4. Step 4: Simplify right side
    12,181.41x = 115,566,249.00
  5. Step 5: Solve for x
    x = 115,566,249.00/12,181.41
  6. Step 6: Final answer
    x = 9,487.10

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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.