Home / 18,043.20-27,021.60-8,798.40

Finding the Fourth Proportional to 18,043.20, 27,021.60 and 8,798.40

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Solution

The fourth proportional to 18,043.20, 27,021.60 and 8,798.40 is: 13,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.20 : 27,021.60 = 8,798.40 : x
  2. Step 2: Convert to fraction form
    18,043.20/27,021.60 = 8,798.40/x
  3. Step 3: Cross multiply
    18,043.20x = 27,021.60 × 8,798.40
  4. Step 4: Simplify right side
    18,043.20x = 237,746,845.44
  5. Step 5: Solve for x
    x = 237,746,845.44/18,043.20
  6. Step 6: Final answer
    x = 13,176.53

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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.