Home / 13,418.08-20,124.60-4,651.20

Finding the Fourth Proportional to 13,418.08, 20,124.60 and 4,651.20

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Solution

The fourth proportional to 13,418.08, 20,124.60 and 4,651.20 is: 6,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.08 : 20,124.60 = 4,651.20 : x
  2. Step 2: Convert to fraction form
    13,418.08/20,124.60 = 4,651.20/x
  3. Step 3: Cross multiply
    13,418.08x = 20,124.60 × 4,651.20
  4. Step 4: Simplify right side
    13,418.08x = 93,603,539.52
  5. Step 5: Solve for x
    x = 93,603,539.52/13,418.08
  6. Step 6: Final answer
    x = 6,975.93

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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.