Home / 12,821.54-19,232.32-8,014.46

Finding the Fourth Proportional to 12,821.54, 19,232.32 and 8,014.46

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Solution

The fourth proportional to 12,821.54, 19,232.32 and 8,014.46 is: 12,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.54 : 19,232.32 = 8,014.46 : x
  2. Step 2: Convert to fraction form
    12,821.54/19,232.32 = 8,014.46/x
  3. Step 3: Cross multiply
    12,821.54x = 19,232.32 × 8,014.46
  4. Step 4: Simplify right side
    12,821.54x = 154,136,659.35
  5. Step 5: Solve for x
    x = 154,136,659.35/12,821.54
  6. Step 6: Final answer
    x = 12,021.70

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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.