Home / 13,411.74-20,124.10-5,520.08

Finding the Fourth Proportional to 13,411.74, 20,124.10 and 5,520.08

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Solution

The fourth proportional to 13,411.74, 20,124.10 and 5,520.08 is: 8,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.74 : 20,124.10 = 5,520.08 : x
  2. Step 2: Convert to fraction form
    13,411.74/20,124.10 = 5,520.08/x
  3. Step 3: Cross multiply
    13,411.74x = 20,124.10 × 5,520.08
  4. Step 4: Simplify right side
    13,411.74x = 111,086,641.93
  5. Step 5: Solve for x
    x = 111,086,641.93/13,411.74
  6. Step 6: Final answer
    x = 8,282.79

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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.