Home / 12,561.35-18,843.23-4,243.93

Finding the Fourth Proportional to 12,561.35, 18,843.23 and 4,243.93

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Solution

The fourth proportional to 12,561.35, 18,843.23 and 4,243.93 is: 6,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.35 : 18,843.23 = 4,243.93 : x
  2. Step 2: Convert to fraction form
    12,561.35/18,843.23 = 4,243.93/x
  3. Step 3: Cross multiply
    12,561.35x = 18,843.23 × 4,243.93
  4. Step 4: Simplify right side
    12,561.35x = 79,969,312.60
  5. Step 5: Solve for x
    x = 79,969,312.60/12,561.35
  6. Step 6: Final answer
    x = 6,366.30

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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.