Home / 13,983.35-20,970.02-4,621.64

Finding the Fourth Proportional to 13,983.35, 20,970.02 and 4,621.64

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Solution

The fourth proportional to 13,983.35, 20,970.02 and 4,621.64 is: 6,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.35 : 20,970.02 = 4,621.64 : x
  2. Step 2: Convert to fraction form
    13,983.35/20,970.02 = 4,621.64/x
  3. Step 3: Cross multiply
    13,983.35x = 20,970.02 × 4,621.64
  4. Step 4: Simplify right side
    13,983.35x = 96,915,789.94
  5. Step 5: Solve for x
    x = 96,915,789.94/13,983.35
  6. Step 6: Final answer
    x = 6,930.80

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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.