Home / 13,419.36-20,124-4,652.16

Finding the Fourth Proportional to 13,419.36, 20,124 and 4,652.16

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Solution

The fourth proportional to 13,419.36, 20,124 and 4,652.16 is: 6,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.36 : 20,124 = 4,652.16 : x
  2. Step 2: Convert to fraction form
    13,419.36/20,124 = 4,652.16/x
  3. Step 3: Cross multiply
    13,419.36x = 20,124 × 4,652.16
  4. Step 4: Simplify right side
    13,419.36x = 93,620,067.84
  5. Step 5: Solve for x
    x = 93,620,067.84/13,419.36
  6. Step 6: Final answer
    x = 6,976.49

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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.