Home / 14,790.39-20,411.56-8,076.64

Finding the Fourth Proportional to 14,790.39, 20,411.56 and 8,076.64

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Solution

The fourth proportional to 14,790.39, 20,411.56 and 8,076.64 is: 11,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.39 : 20,411.56 = 8,076.64 : x
  2. Step 2: Convert to fraction form
    14,790.39/20,411.56 = 8,076.64/x
  3. Step 3: Cross multiply
    14,790.39x = 20,411.56 × 8,076.64
  4. Step 4: Simplify right side
    14,790.39x = 164,856,781.03
  5. Step 5: Solve for x
    x = 164,856,781.03/14,790.39
  6. Step 6: Final answer
    x = 11,146.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.