Home / 11,061.80-16,558.14-8,447.40

Finding the Fourth Proportional to 11,061.80, 16,558.14 and 8,447.40

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Solution

The fourth proportional to 11,061.80, 16,558.14 and 8,447.40 is: 12,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,061.80 : 16,558.14 = 8,447.40 : x
  2. Step 2: Convert to fraction form
    11,061.80/16,558.14 = 8,447.40/x
  3. Step 3: Cross multiply
    11,061.80x = 16,558.14 × 8,447.40
  4. Step 4: Simplify right side
    11,061.80x = 139,873,231.84
  5. Step 5: Solve for x
    x = 139,873,231.84/11,061.80
  6. Step 6: Final answer
    x = 12,644.71

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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.