Home / 13,919.18-19,197.86-11,982.15

Finding the Fourth Proportional to 13,919.18, 19,197.86 and 11,982.15

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Solution

The fourth proportional to 13,919.18, 19,197.86 and 11,982.15 is: 16,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.18 : 19,197.86 = 11,982.15 : x
  2. Step 2: Convert to fraction form
    13,919.18/19,197.86 = 11,982.15/x
  3. Step 3: Cross multiply
    13,919.18x = 19,197.86 × 11,982.15
  4. Step 4: Simplify right side
    13,919.18x = 230,031,578.29
  5. Step 5: Solve for x
    x = 230,031,578.29/13,919.18
  6. Step 6: Final answer
    x = 16,526.24

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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.