Home / 12,213.41-16,853.55-7,177.82

Finding the Fourth Proportional to 12,213.41, 16,853.55 and 7,177.82

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Solution

The fourth proportional to 12,213.41, 16,853.55 and 7,177.82 is: 9,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.41 : 16,853.55 = 7,177.82 : x
  2. Step 2: Convert to fraction form
    12,213.41/16,853.55 = 7,177.82/x
  3. Step 3: Cross multiply
    12,213.41x = 16,853.55 × 7,177.82
  4. Step 4: Simplify right side
    12,213.41x = 120,971,748.26
  5. Step 5: Solve for x
    x = 120,971,748.26/12,213.41
  6. Step 6: Final answer
    x = 9,904.83

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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.