Home / 10,578.60-15,866.70-2,788.02

Finding the Fourth Proportional to 10,578.60, 15,866.70 and 2,788.02

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Solution

The fourth proportional to 10,578.60, 15,866.70 and 2,788.02 is: 4,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.60 : 15,866.70 = 2,788.02 : x
  2. Step 2: Convert to fraction form
    10,578.60/15,866.70 = 2,788.02/x
  3. Step 3: Cross multiply
    10,578.60x = 15,866.70 × 2,788.02
  4. Step 4: Simplify right side
    10,578.60x = 44,236,676.93
  5. Step 5: Solve for x
    x = 44,236,676.93/10,578.60
  6. Step 6: Final answer
    x = 4,181.71

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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.