Home / 13,708.86-20,564.30-12,076.71

Finding the Fourth Proportional to 13,708.86, 20,564.30 and 12,076.71

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Solution

The fourth proportional to 13,708.86, 20,564.30 and 12,076.71 is: 18,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.86 : 20,564.30 = 12,076.71 : x
  2. Step 2: Convert to fraction form
    13,708.86/20,564.30 = 12,076.71/x
  3. Step 3: Cross multiply
    13,708.86x = 20,564.30 × 12,076.71
  4. Step 4: Simplify right side
    13,708.86x = 248,348,924.25
  5. Step 5: Solve for x
    x = 248,348,924.25/13,708.86
  6. Step 6: Final answer
    x = 18,115.95

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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.