Home / 12,221.23-18,307.24-8,477.36

Finding the Fourth Proportional to 12,221.23, 18,307.24 and 8,477.36

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Solution

The fourth proportional to 12,221.23, 18,307.24 and 8,477.36 is: 12,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.23 : 18,307.24 = 8,477.36 : x
  2. Step 2: Convert to fraction form
    12,221.23/18,307.24 = 8,477.36/x
  3. Step 3: Cross multiply
    12,221.23x = 18,307.24 × 8,477.36
  4. Step 4: Simplify right side
    12,221.23x = 155,197,043.85
  5. Step 5: Solve for x
    x = 155,197,043.85/12,221.23
  6. Step 6: Final answer
    x = 12,698.97

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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.