Home / 13,843.24-20,665.15-12,859.09

Finding the Fourth Proportional to 13,843.24, 20,665.15 and 12,859.09

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Solution

The fourth proportional to 13,843.24, 20,665.15 and 12,859.09 is: 19,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.24 : 20,665.15 = 12,859.09 : x
  2. Step 2: Convert to fraction form
    13,843.24/20,665.15 = 12,859.09/x
  3. Step 3: Cross multiply
    13,843.24x = 20,665.15 × 12,859.09
  4. Step 4: Simplify right side
    13,843.24x = 265,735,023.71
  5. Step 5: Solve for x
    x = 265,735,023.71/13,843.24
  6. Step 6: Final answer
    x = 19,196.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.