Home / 13,412.48-20,118.87-4,052.57

Finding the Fourth Proportional to 13,412.48, 20,118.87 and 4,052.57

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Solution

The fourth proportional to 13,412.48, 20,118.87 and 4,052.57 is: 6,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.48 : 20,118.87 = 4,052.57 : x
  2. Step 2: Convert to fraction form
    13,412.48/20,118.87 = 4,052.57/x
  3. Step 3: Cross multiply
    13,412.48x = 20,118.87 × 4,052.57
  4. Step 4: Simplify right side
    13,412.48x = 81,533,129.00
  5. Step 5: Solve for x
    x = 81,533,129.00/13,412.48
  6. Step 6: Final answer
    x = 6,078.90

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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.