Home / 8,511.60-12,754.40-3,578.54

Finding the Fourth Proportional to 8,511.60, 12,754.40 and 3,578.54

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Solution

The fourth proportional to 8,511.60, 12,754.40 and 3,578.54 is: 5,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.60 : 12,754.40 = 3,578.54 : x
  2. Step 2: Convert to fraction form
    8,511.60/12,754.40 = 3,578.54/x
  3. Step 3: Cross multiply
    8,511.60x = 12,754.40 × 3,578.54
  4. Step 4: Simplify right side
    8,511.60x = 45,642,130.58
  5. Step 5: Solve for x
    x = 45,642,130.58/8,511.60
  6. Step 6: Final answer
    x = 5,362.34

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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.