Home / 13,480.75-20,293.93-12,124.47

Finding the Fourth Proportional to 13,480.75, 20,293.93 and 12,124.47

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Solution

The fourth proportional to 13,480.75, 20,293.93 and 12,124.47 is: 18,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.75 : 20,293.93 = 12,124.47 : x
  2. Step 2: Convert to fraction form
    13,480.75/20,293.93 = 12,124.47/x
  3. Step 3: Cross multiply
    13,480.75x = 20,293.93 × 12,124.47
  4. Step 4: Simplify right side
    13,480.75x = 246,053,145.47
  5. Step 5: Solve for x
    x = 246,053,145.47/13,480.75
  6. Step 6: Final answer
    x = 18,252.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.