Home / 13,998.18-19,315.97-8,029.70

Finding the Fourth Proportional to 13,998.18, 19,315.97 and 8,029.70

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Solution

The fourth proportional to 13,998.18, 19,315.97 and 8,029.70 is: 11,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.18 : 19,315.97 = 8,029.70 : x
  2. Step 2: Convert to fraction form
    13,998.18/19,315.97 = 8,029.70/x
  3. Step 3: Cross multiply
    13,998.18x = 19,315.97 × 8,029.70
  4. Step 4: Simplify right side
    13,998.18x = 155,101,410.13
  5. Step 5: Solve for x
    x = 155,101,410.13/13,998.18
  6. Step 6: Final answer
    x = 11,080.11

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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.