Home / 13,911.21-19,197.77-7,623.59

Finding the Fourth Proportional to 13,911.21, 19,197.77 and 7,623.59

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Solution

The fourth proportional to 13,911.21, 19,197.77 and 7,623.59 is: 10,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.21 : 19,197.77 = 7,623.59 : x
  2. Step 2: Convert to fraction form
    13,911.21/19,197.77 = 7,623.59/x
  3. Step 3: Cross multiply
    13,911.21x = 19,197.77 × 7,623.59
  4. Step 4: Simplify right side
    13,911.21x = 146,355,793.29
  5. Step 5: Solve for x
    x = 146,355,793.29/13,911.21
  6. Step 6: Final answer
    x = 10,520.71

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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.