Home / 13,819.19-20,749.55-8,297.24

Finding the Fourth Proportional to 13,819.19, 20,749.55 and 8,297.24

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Solution

The fourth proportional to 13,819.19, 20,749.55 and 8,297.24 is: 12,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.19 : 20,749.55 = 8,297.24 : x
  2. Step 2: Convert to fraction form
    13,819.19/20,749.55 = 8,297.24/x
  3. Step 3: Cross multiply
    13,819.19x = 20,749.55 × 8,297.24
  4. Step 4: Simplify right side
    13,819.19x = 172,163,851.01
  5. Step 5: Solve for x
    x = 172,163,851.01/13,819.19
  6. Step 6: Final answer
    x = 12,458.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.