Home / 13,113.06-19,669.59-3,879.06

Finding the Fourth Proportional to 13,113.06, 19,669.59 and 3,879.06

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Solution

The fourth proportional to 13,113.06, 19,669.59 and 3,879.06 is: 5,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.06 : 19,669.59 = 3,879.06 : x
  2. Step 2: Convert to fraction form
    13,113.06/19,669.59 = 3,879.06/x
  3. Step 3: Cross multiply
    13,113.06x = 19,669.59 × 3,879.06
  4. Step 4: Simplify right side
    13,113.06x = 76,299,519.79
  5. Step 5: Solve for x
    x = 76,299,519.79/13,113.06
  6. Step 6: Final answer
    x = 5,818.59

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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.