Home / 15,969.59-22,021.34-11,930.09

Finding the Fourth Proportional to 15,969.59, 22,021.34 and 11,930.09

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Solution

The fourth proportional to 15,969.59, 22,021.34 and 11,930.09 is: 16,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.59 : 22,021.34 = 11,930.09 : x
  2. Step 2: Convert to fraction form
    15,969.59/22,021.34 = 11,930.09/x
  3. Step 3: Cross multiply
    15,969.59x = 22,021.34 × 11,930.09
  4. Step 4: Simplify right side
    15,969.59x = 262,716,508.47
  5. Step 5: Solve for x
    x = 262,716,508.47/15,969.59
  6. Step 6: Final answer
    x = 16,451.05

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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.