Home / 19,177.78-28,770.60-7,330.72

Finding the Fourth Proportional to 19,177.78, 28,770.60 and 7,330.72

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Solution

The fourth proportional to 19,177.78, 28,770.60 and 7,330.72 is: 10,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,177.78 : 28,770.60 = 7,330.72 : x
  2. Step 2: Convert to fraction form
    19,177.78/28,770.60 = 7,330.72/x
  3. Step 3: Cross multiply
    19,177.78x = 28,770.60 × 7,330.72
  4. Step 4: Simplify right side
    19,177.78x = 210,909,212.83
  5. Step 5: Solve for x
    x = 210,909,212.83/19,177.78
  6. Step 6: Final answer
    x = 10,997.58

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1.5x scale

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.