Home / 13,411.14-20,120.34-4,051.46

Finding the Fourth Proportional to 13,411.14, 20,120.34 and 4,051.46

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Solution

The fourth proportional to 13,411.14, 20,120.34 and 4,051.46 is: 6,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.14 : 20,120.34 = 4,051.46 : x
  2. Step 2: Convert to fraction form
    13,411.14/20,120.34 = 4,051.46/x
  3. Step 3: Cross multiply
    13,411.14x = 20,120.34 × 4,051.46
  4. Step 4: Simplify right side
    13,411.14x = 81,516,803.00
  5. Step 5: Solve for x
    x = 81,516,803.00/13,411.14
  6. Step 6: Final answer
    x = 6,078.29

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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.