Home / 19,003.68-28,516.32-12,766.68

Finding the Fourth Proportional to 19,003.68, 28,516.32 and 12,766.68

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Solution

The fourth proportional to 19,003.68, 28,516.32 and 12,766.68 is: 19,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,003.68 : 28,516.32 = 12,766.68 : x
  2. Step 2: Convert to fraction form
    19,003.68/28,516.32 = 12,766.68/x
  3. Step 3: Cross multiply
    19,003.68x = 28,516.32 × 12,766.68
  4. Step 4: Simplify right side
    19,003.68x = 364,058,732.22
  5. Step 5: Solve for x
    x = 364,058,732.22/19,003.68
  6. Step 6: Final answer
    x = 19,157.28

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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.