Home / 15,819.35-21,829.23-8,745.62

Finding the Fourth Proportional to 15,819.35, 21,829.23 and 8,745.62

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Solution

The fourth proportional to 15,819.35, 21,829.23 and 8,745.62 is: 12,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.35 : 21,829.23 = 8,745.62 : x
  2. Step 2: Convert to fraction form
    15,819.35/21,829.23 = 8,745.62/x
  3. Step 3: Cross multiply
    15,819.35x = 21,829.23 × 8,745.62
  4. Step 4: Simplify right side
    15,819.35x = 190,910,041.33
  5. Step 5: Solve for x
    x = 190,910,041.33/15,819.35
  6. Step 6: Final answer
    x = 12,068.14

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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.