Home / 13,826.49-20,740.80-5,061.21

Finding the Fourth Proportional to 13,826.49, 20,740.80 and 5,061.21

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Solution

The fourth proportional to 13,826.49, 20,740.80 and 5,061.21 is: 7,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.49 : 20,740.80 = 5,061.21 : x
  2. Step 2: Convert to fraction form
    13,826.49/20,740.80 = 5,061.21/x
  3. Step 3: Cross multiply
    13,826.49x = 20,740.80 × 5,061.21
  4. Step 4: Simplify right side
    13,826.49x = 104,973,544.37
  5. Step 5: Solve for x
    x = 104,973,544.37/13,826.49
  6. Step 6: Final answer
    x = 7,592.20

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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.