Home / 15,819.03-21,829.91-8,745.44

Finding the Fourth Proportional to 15,819.03, 21,829.91 and 8,745.44

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Solution

The fourth proportional to 15,819.03, 21,829.91 and 8,745.44 is: 12,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.03 : 21,829.91 = 8,745.44 : x
  2. Step 2: Convert to fraction form
    15,819.03/21,829.91 = 8,745.44/x
  3. Step 3: Cross multiply
    15,819.03x = 21,829.91 × 8,745.44
  4. Step 4: Simplify right side
    15,819.03x = 190,912,015.23
  5. Step 5: Solve for x
    x = 190,912,015.23/15,819.03
  6. Step 6: Final answer
    x = 12,068.50

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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.