Home / 13,411.35-20,109.21-4,048.56

Finding the Fourth Proportional to 13,411.35, 20,109.21 and 4,048.56

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Solution

The fourth proportional to 13,411.35, 20,109.21 and 4,048.56 is: 6,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.35 : 20,109.21 = 4,048.56 : x
  2. Step 2: Convert to fraction form
    13,411.35/20,109.21 = 4,048.56/x
  3. Step 3: Cross multiply
    13,411.35x = 20,109.21 × 4,048.56
  4. Step 4: Simplify right side
    13,411.35x = 81,413,343.24
  5. Step 5: Solve for x
    x = 81,413,343.24/13,411.35
  6. Step 6: Final answer
    x = 6,070.48

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1.5x scale

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.