Home / 12,651.24-18,977.28-4,752.96

Finding the Fourth Proportional to 12,651.24, 18,977.28 and 4,752.96

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Solution

The fourth proportional to 12,651.24, 18,977.28 and 4,752.96 is: 7,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.24 : 18,977.28 = 4,752.96 : x
  2. Step 2: Convert to fraction form
    12,651.24/18,977.28 = 4,752.96/x
  3. Step 3: Cross multiply
    12,651.24x = 18,977.28 × 4,752.96
  4. Step 4: Simplify right side
    12,651.24x = 90,198,252.75
  5. Step 5: Solve for x
    x = 90,198,252.75/12,651.24
  6. Step 6: Final answer
    x = 7,129.60

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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.