Home / 12,099.40-16,727.12-11,988.57

Finding the Fourth Proportional to 12,099.40, 16,727.12 and 11,988.57

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Solution

The fourth proportional to 12,099.40, 16,727.12 and 11,988.57 is: 16,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.40 : 16,727.12 = 11,988.57 : x
  2. Step 2: Convert to fraction form
    12,099.40/16,727.12 = 11,988.57/x
  3. Step 3: Cross multiply
    12,099.40x = 16,727.12 × 11,988.57
  4. Step 4: Simplify right side
    12,099.40x = 200,534,249.02
  5. Step 5: Solve for x
    x = 200,534,249.02/12,099.40
  6. Step 6: Final answer
    x = 16,573.90

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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.