Home / 13,819.42-19,073.88-8,782.66

Finding the Fourth Proportional to 13,819.42, 19,073.88 and 8,782.66

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Solution

The fourth proportional to 13,819.42, 19,073.88 and 8,782.66 is: 12,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.42 : 19,073.88 = 8,782.66 : x
  2. Step 2: Convert to fraction form
    13,819.42/19,073.88 = 8,782.66/x
  3. Step 3: Cross multiply
    13,819.42x = 19,073.88 × 8,782.66
  4. Step 4: Simplify right side
    13,819.42x = 167,519,402.92
  5. Step 5: Solve for x
    x = 167,519,402.92/13,819.42
  6. Step 6: Final answer
    x = 12,122.03

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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.