Home / 19,177.58-28,756.56-8,780.42

Finding the Fourth Proportional to 19,177.58, 28,756.56 and 8,780.42

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Solution

The fourth proportional to 19,177.58, 28,756.56 and 8,780.42 is: 13,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,177.58 : 28,756.56 = 8,780.42 : x
  2. Step 2: Convert to fraction form
    19,177.58/28,756.56 = 8,780.42/x
  3. Step 3: Cross multiply
    19,177.58x = 28,756.56 × 8,780.42
  4. Step 4: Simplify right side
    19,177.58x = 252,494,674.56
  5. Step 5: Solve for x
    x = 252,494,674.56/19,177.58
  6. Step 6: Final answer
    x = 13,166.14

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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.