Home / 19,351.32-26,709.21-13,309.62

Finding the Fourth Proportional to 19,351.32, 26,709.21 and 13,309.62

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Solution

The fourth proportional to 19,351.32, 26,709.21 and 13,309.62 is: 18,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.32 : 26,709.21 = 13,309.62 : x
  2. Step 2: Convert to fraction form
    19,351.32/26,709.21 = 13,309.62/x
  3. Step 3: Cross multiply
    19,351.32x = 26,709.21 × 13,309.62
  4. Step 4: Simplify right side
    19,351.32x = 355,489,435.60
  5. Step 5: Solve for x
    x = 355,489,435.60/19,351.32
  6. Step 6: Final answer
    x = 18,370.29

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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.