Home / 13,983.23-20,970.39-4,621.50

Finding the Fourth Proportional to 13,983.23, 20,970.39 and 4,621.50

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Solution

The fourth proportional to 13,983.23, 20,970.39 and 4,621.50 is: 6,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.23 : 20,970.39 = 4,621.50 : x
  2. Step 2: Convert to fraction form
    13,983.23/20,970.39 = 4,621.50/x
  3. Step 3: Cross multiply
    13,983.23x = 20,970.39 × 4,621.50
  4. Step 4: Simplify right side
    13,983.23x = 96,914,657.39
  5. Step 5: Solve for x
    x = 96,914,657.39/13,983.23
  6. Step 6: Final answer
    x = 6,930.78

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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.