Home / 15,592.80-21,518.54-8,519.68

Finding the Fourth Proportional to 15,592.80, 21,518.54 and 8,519.68

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Solution

The fourth proportional to 15,592.80, 21,518.54 and 8,519.68 is: 11,757.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.80 : 21,518.54 = 8,519.68 : x
  2. Step 2: Convert to fraction form
    15,592.80/21,518.54 = 8,519.68/x
  3. Step 3: Cross multiply
    15,592.80x = 21,518.54 × 8,519.68
  4. Step 4: Simplify right side
    15,592.80x = 183,331,074.87
  5. Step 5: Solve for x
    x = 183,331,074.87/15,592.80
  6. Step 6: Final answer
    x = 11,757.42

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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.