Home / 19,110.40-28,660.80-6,795.52

Finding the Fourth Proportional to 19,110.40, 28,660.80 and 6,795.52

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Solution

The fourth proportional to 19,110.40, 28,660.80 and 6,795.52 is: 10,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.40 : 28,660.80 = 6,795.52 : x
  2. Step 2: Convert to fraction form
    19,110.40/28,660.80 = 6,795.52/x
  3. Step 3: Cross multiply
    19,110.40x = 28,660.80 × 6,795.52
  4. Step 4: Simplify right side
    19,110.40x = 194,765,039.62
  5. Step 5: Solve for x
    x = 194,765,039.62/19,110.40
  6. Step 6: Final answer
    x = 10,191.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.