Home / 13,908.40-19,193.61-8,245.92

Finding the Fourth Proportional to 13,908.40, 19,193.61 and 8,245.92

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Solution

The fourth proportional to 13,908.40, 19,193.61 and 8,245.92 is: 11,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.40 : 19,193.61 = 8,245.92 : x
  2. Step 2: Convert to fraction form
    13,908.40/19,193.61 = 8,245.92/x
  3. Step 3: Cross multiply
    13,908.40x = 19,193.61 × 8,245.92
  4. Step 4: Simplify right side
    13,908.40x = 158,269,075.47
  5. Step 5: Solve for x
    x = 158,269,075.47/13,908.40
  6. Step 6: Final answer
    x = 11,379.39

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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.