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Finding the Fourth Proportional to 11,927.88, 17,811.44 and 9,740.88

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Solution

The fourth proportional to 11,927.88, 17,811.44 and 9,740.88 is: 14,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.88 : 17,811.44 = 9,740.88 : x
  2. Step 2: Convert to fraction form
    11,927.88/17,811.44 = 9,740.88/x
  3. Step 3: Cross multiply
    11,927.88x = 17,811.44 × 9,740.88
  4. Step 4: Simplify right side
    11,927.88x = 173,499,099.67
  5. Step 5: Solve for x
    x = 173,499,099.67/11,927.88
  6. Step 6: Final answer
    x = 14,545.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.