Home / 19,170.60-28,769.87-9,818.43

Finding the Fourth Proportional to 19,170.60, 28,769.87 and 9,818.43

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Solution

The fourth proportional to 19,170.60, 28,769.87 and 9,818.43 is: 14,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.60 : 28,769.87 = 9,818.43 : x
  2. Step 2: Convert to fraction form
    19,170.60/28,769.87 = 9,818.43/x
  3. Step 3: Cross multiply
    19,170.60x = 28,769.87 × 9,818.43
  4. Step 4: Simplify right side
    19,170.60x = 282,474,905.61
  5. Step 5: Solve for x
    x = 282,474,905.61/19,170.60
  6. Step 6: Final answer
    x = 14,734.80

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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.