Home / 12,212.40-18,321.45-4,816.29

Finding the Fourth Proportional to 12,212.40, 18,321.45 and 4,816.29

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Solution

The fourth proportional to 12,212.40, 18,321.45 and 4,816.29 is: 7,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.40 : 18,321.45 = 4,816.29 : x
  2. Step 2: Convert to fraction form
    12,212.40/18,321.45 = 4,816.29/x
  3. Step 3: Cross multiply
    12,212.40x = 18,321.45 × 4,816.29
  4. Step 4: Simplify right side
    12,212.40x = 88,241,416.42
  5. Step 5: Solve for x
    x = 88,241,416.42/12,212.40
  6. Step 6: Final answer
    x = 7,225.56

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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.