Home / 16,051.68-22,128.39-13,394.88

Finding the Fourth Proportional to 16,051.68, 22,128.39 and 13,394.88

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Solution

The fourth proportional to 16,051.68, 22,128.39 and 13,394.88 is: 18,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,051.68 : 22,128.39 = 13,394.88 : x
  2. Step 2: Convert to fraction form
    16,051.68/22,128.39 = 13,394.88/x
  3. Step 3: Cross multiply
    16,051.68x = 22,128.39 × 13,394.88
  4. Step 4: Simplify right side
    16,051.68x = 296,407,128.64
  5. Step 5: Solve for x
    x = 296,407,128.64/16,051.68
  6. Step 6: Final answer
    x = 18,465.80

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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.