Home / 19,255.32-28,887.84-8,874.36

Finding the Fourth Proportional to 19,255.32, 28,887.84 and 8,874.36

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Solution

The fourth proportional to 19,255.32, 28,887.84 and 8,874.36 is: 13,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.32 : 28,887.84 = 8,874.36 : x
  2. Step 2: Convert to fraction form
    19,255.32/28,887.84 = 8,874.36/x
  3. Step 3: Cross multiply
    19,255.32x = 28,887.84 × 8,874.36
  4. Step 4: Simplify right side
    19,255.32x = 256,361,091.78
  5. Step 5: Solve for x
    x = 256,361,091.78/19,255.32
  6. Step 6: Final answer
    x = 13,313.78

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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.