Home / 14,083.07-19,438.96-8,118.72

Finding the Fourth Proportional to 14,083.07, 19,438.96 and 8,118.72

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Solution

The fourth proportional to 14,083.07, 19,438.96 and 8,118.72 is: 11,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.07 : 19,438.96 = 8,118.72 : x
  2. Step 2: Convert to fraction form
    14,083.07/19,438.96 = 8,118.72/x
  3. Step 3: Cross multiply
    14,083.07x = 19,438.96 × 8,118.72
  4. Step 4: Simplify right side
    14,083.07x = 157,819,473.33
  5. Step 5: Solve for x
    x = 157,819,473.33/14,083.07
  6. Step 6: Final answer
    x = 11,206.33

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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.