Home / 13,827.54-20,690.28-8,284.80

Finding the Fourth Proportional to 13,827.54, 20,690.28 and 8,284.80

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Solution

The fourth proportional to 13,827.54, 20,690.28 and 8,284.80 is: 12,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.54 : 20,690.28 = 8,284.80 : x
  2. Step 2: Convert to fraction form
    13,827.54/20,690.28 = 8,284.80/x
  3. Step 3: Cross multiply
    13,827.54x = 20,690.28 × 8,284.80
  4. Step 4: Simplify right side
    13,827.54x = 171,414,831.74
  5. Step 5: Solve for x
    x = 171,414,831.74/13,827.54
  6. Step 6: Final answer
    x = 12,396.63

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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.