Home / 11,892.96-16,415.66-7,177.55

Finding the Fourth Proportional to 11,892.96, 16,415.66 and 7,177.55

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Solution

The fourth proportional to 11,892.96, 16,415.66 and 7,177.55 is: 9,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.96 : 16,415.66 = 7,177.55 : x
  2. Step 2: Convert to fraction form
    11,892.96/16,415.66 = 7,177.55/x
  3. Step 3: Cross multiply
    11,892.96x = 16,415.66 × 7,177.55
  4. Step 4: Simplify right side
    11,892.96x = 117,824,156.30
  5. Step 5: Solve for x
    x = 117,824,156.30/11,892.96
  6. Step 6: Final answer
    x = 9,907.05

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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.