Home / 10,490.11-15,730.56-5,558.62

Finding the Fourth Proportional to 10,490.11, 15,730.56 and 5,558.62

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Solution

The fourth proportional to 10,490.11, 15,730.56 and 5,558.62 is: 8,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.11 : 15,730.56 = 5,558.62 : x
  2. Step 2: Convert to fraction form
    10,490.11/15,730.56 = 5,558.62/x
  3. Step 3: Cross multiply
    10,490.11x = 15,730.56 × 5,558.62
  4. Step 4: Simplify right side
    10,490.11x = 87,440,205.43
  5. Step 5: Solve for x
    x = 87,440,205.43/10,490.11
  6. Step 6: Final answer
    x = 8,335.49

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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.