Home / 15,940.20-22,001.70-11,226.60

Finding the Fourth Proportional to 15,940.20, 22,001.70 and 11,226.60

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Solution

The fourth proportional to 15,940.20, 22,001.70 and 11,226.60 is: 15,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.20 : 22,001.70 = 11,226.60 : x
  2. Step 2: Convert to fraction form
    15,940.20/22,001.70 = 11,226.60/x
  3. Step 3: Cross multiply
    15,940.20x = 22,001.70 × 11,226.60
  4. Step 4: Simplify right side
    15,940.20x = 247,004,285.22
  5. Step 5: Solve for x
    x = 247,004,285.22/15,940.20
  6. Step 6: Final answer
    x = 15,495.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.