Home / 17,787.43-26,688.89-8,434

Finding the Fourth Proportional to 17,787.43, 26,688.89 and 8,434

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Solution

The fourth proportional to 17,787.43, 26,688.89 and 8,434 is: 12,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.43 : 26,688.89 = 8,434 : x
  2. Step 2: Convert to fraction form
    17,787.43/26,688.89 = 8,434/x
  3. Step 3: Cross multiply
    17,787.43x = 26,688.89 × 8,434
  4. Step 4: Simplify right side
    17,787.43x = 225,094,098.26
  5. Step 5: Solve for x
    x = 225,094,098.26/17,787.43
  6. Step 6: Final answer
    x = 12,654.67

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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.