Home / 10,578.86-15,869.09-3,558.89

Finding the Fourth Proportional to 10,578.86, 15,869.09 and 3,558.89

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Solution

The fourth proportional to 10,578.86, 15,869.09 and 3,558.89 is: 5,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.86 : 15,869.09 = 3,558.89 : x
  2. Step 2: Convert to fraction form
    10,578.86/15,869.09 = 3,558.89/x
  3. Step 3: Cross multiply
    10,578.86x = 15,869.09 × 3,558.89
  4. Step 4: Simplify right side
    10,578.86x = 56,476,327.92
  5. Step 5: Solve for x
    x = 56,476,327.92/10,578.86
  6. Step 6: Final answer
    x = 5,338.60

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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.