Home / 18,815.34-28,224.42-6,335.40

Finding the Fourth Proportional to 18,815.34, 28,224.42 and 6,335.40

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Solution

The fourth proportional to 18,815.34, 28,224.42 and 6,335.40 is: 9,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.34 : 28,224.42 = 6,335.40 : x
  2. Step 2: Convert to fraction form
    18,815.34/28,224.42 = 6,335.40/x
  3. Step 3: Cross multiply
    18,815.34x = 28,224.42 × 6,335.40
  4. Step 4: Simplify right side
    18,815.34x = 178,812,990.47
  5. Step 5: Solve for x
    x = 178,812,990.47/18,815.34
  6. Step 6: Final answer
    x = 9,503.57

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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.