Home / 13,212.91-18,230.02-8,735.03

Finding the Fourth Proportional to 13,212.91, 18,230.02 and 8,735.03

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Solution

The fourth proportional to 13,212.91, 18,230.02 and 8,735.03 is: 12,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.91 : 18,230.02 = 8,735.03 : x
  2. Step 2: Convert to fraction form
    13,212.91/18,230.02 = 8,735.03/x
  3. Step 3: Cross multiply
    13,212.91x = 18,230.02 × 8,735.03
  4. Step 4: Simplify right side
    13,212.91x = 159,239,771.60
  5. Step 5: Solve for x
    x = 159,239,771.60/13,212.91
  6. Step 6: Final answer
    x = 12,051.83

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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.