Home / 12,180.11-16,808.55-6,875.27

Finding the Fourth Proportional to 12,180.11, 16,808.55 and 6,875.27

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Solution

The fourth proportional to 12,180.11, 16,808.55 and 6,875.27 is: 9,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.11 : 16,808.55 = 6,875.27 : x
  2. Step 2: Convert to fraction form
    12,180.11/16,808.55 = 6,875.27/x
  3. Step 3: Cross multiply
    12,180.11x = 16,808.55 × 6,875.27
  4. Step 4: Simplify right side
    12,180.11x = 115,563,342.59
  5. Step 5: Solve for x
    x = 115,563,342.59/12,180.11
  6. Step 6: Final answer
    x = 9,487.87

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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.