Home / 12,543.24-18,816.48-4,219.68

Finding the Fourth Proportional to 12,543.24, 18,816.48 and 4,219.68

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Solution

The fourth proportional to 12,543.24, 18,816.48 and 4,219.68 is: 6,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.24 : 18,816.48 = 4,219.68 : x
  2. Step 2: Convert to fraction form
    12,543.24/18,816.48 = 4,219.68/x
  3. Step 3: Cross multiply
    12,543.24x = 18,816.48 × 4,219.68
  4. Step 4: Simplify right side
    12,543.24x = 79,399,524.33
  5. Step 5: Solve for x
    x = 79,399,524.33/12,543.24
  6. Step 6: Final answer
    x = 6,330.06

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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.