Home / 13,636.74-20,428.36-7,067.22

Finding the Fourth Proportional to 13,636.74, 20,428.36 and 7,067.22

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Solution

The fourth proportional to 13,636.74, 20,428.36 and 7,067.22 is: 10,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.74 : 20,428.36 = 7,067.22 : x
  2. Step 2: Convert to fraction form
    13,636.74/20,428.36 = 7,067.22/x
  3. Step 3: Cross multiply
    13,636.74x = 20,428.36 × 7,067.22
  4. Step 4: Simplify right side
    13,636.74x = 144,371,714.36
  5. Step 5: Solve for x
    x = 144,371,714.36/13,636.74
  6. Step 6: Final answer
    x = 10,586.97

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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.