Home / 13,930.72-19,228.08-8,622.56

Finding the Fourth Proportional to 13,930.72, 19,228.08 and 8,622.56

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Solution

The fourth proportional to 13,930.72, 19,228.08 and 8,622.56 is: 11,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.72 : 19,228.08 = 8,622.56 : x
  2. Step 2: Convert to fraction form
    13,930.72/19,228.08 = 8,622.56/x
  3. Step 3: Cross multiply
    13,930.72x = 19,228.08 × 8,622.56
  4. Step 4: Simplify right side
    13,930.72x = 165,795,273.48
  5. Step 5: Solve for x
    x = 165,795,273.48/13,930.72
  6. Step 6: Final answer
    x = 11,901.41

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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.