Home / 13,819.11-19,073.45-8,782.35

Finding the Fourth Proportional to 13,819.11, 19,073.45 and 8,782.35

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Solution

The fourth proportional to 13,819.11, 19,073.45 and 8,782.35 is: 12,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.11 : 19,073.45 = 8,782.35 : x
  2. Step 2: Convert to fraction form
    13,819.11/19,073.45 = 8,782.35/x
  3. Step 3: Cross multiply
    13,819.11x = 19,073.45 × 8,782.35
  4. Step 4: Simplify right side
    13,819.11x = 167,509,713.61
  5. Step 5: Solve for x
    x = 167,509,713.61/13,819.11
  6. Step 6: Final answer
    x = 12,121.60

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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.