Home / 8,940.20-13,409.88-4,256.80

Finding the Fourth Proportional to 8,940.20, 13,409.88 and 4,256.80

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Solution

The fourth proportional to 8,940.20, 13,409.88 and 4,256.80 is: 6,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.20 : 13,409.88 = 4,256.80 : x
  2. Step 2: Convert to fraction form
    8,940.20/13,409.88 = 4,256.80/x
  3. Step 3: Cross multiply
    8,940.20x = 13,409.88 × 4,256.80
  4. Step 4: Simplify right side
    8,940.20x = 57,083,177.18
  5. Step 5: Solve for x
    x = 57,083,177.18/8,940.20
  6. Step 6: Final answer
    x = 6,385.00

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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.