Home / 12,211.42-16,855.08-7,177.26

Finding the Fourth Proportional to 12,211.42, 16,855.08 and 7,177.26

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Solution

The fourth proportional to 12,211.42, 16,855.08 and 7,177.26 is: 9,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.42 : 16,855.08 = 7,177.26 : x
  2. Step 2: Convert to fraction form
    12,211.42/16,855.08 = 7,177.26/x
  3. Step 3: Cross multiply
    12,211.42x = 16,855.08 × 7,177.26
  4. Step 4: Simplify right side
    12,211.42x = 120,973,291.48
  5. Step 5: Solve for x
    x = 120,973,291.48/12,211.42
  6. Step 6: Final answer
    x = 9,906.57

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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.