Home / 13,385.56-20,078.66-4,501.02

Finding the Fourth Proportional to 13,385.56, 20,078.66 and 4,501.02

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Solution

The fourth proportional to 13,385.56, 20,078.66 and 4,501.02 is: 6,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.56 : 20,078.66 = 4,501.02 : x
  2. Step 2: Convert to fraction form
    13,385.56/20,078.66 = 4,501.02/x
  3. Step 3: Cross multiply
    13,385.56x = 20,078.66 × 4,501.02
  4. Step 4: Simplify right side
    13,385.56x = 90,374,450.23
  5. Step 5: Solve for x
    x = 90,374,450.23/13,385.56
  6. Step 6: Final answer
    x = 6,751.64

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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.