Home / 11,188.21-15,416.98-8,654.94

Finding the Fourth Proportional to 11,188.21, 15,416.98 and 8,654.94

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Solution

The fourth proportional to 11,188.21, 15,416.98 and 8,654.94 is: 11,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.21 : 15,416.98 = 8,654.94 : x
  2. Step 2: Convert to fraction form
    11,188.21/15,416.98 = 8,654.94/x
  3. Step 3: Cross multiply
    11,188.21x = 15,416.98 × 8,654.94
  4. Step 4: Simplify right side
    11,188.21x = 133,433,036.88
  5. Step 5: Solve for x
    x = 133,433,036.88/11,188.21
  6. Step 6: Final answer
    x = 11,926.22

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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.