Home / 19,747.72-29,629.41-11,865.07

Finding the Fourth Proportional to 19,747.72, 29,629.41 and 11,865.07

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Solution

The fourth proportional to 19,747.72, 29,629.41 and 11,865.07 is: 17,802.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.72 : 29,629.41 = 11,865.07 : x
  2. Step 2: Convert to fraction form
    19,747.72/29,629.41 = 11,865.07/x
  3. Step 3: Cross multiply
    19,747.72x = 29,629.41 × 11,865.07
  4. Step 4: Simplify right side
    19,747.72x = 351,555,023.71
  5. Step 5: Solve for x
    x = 351,555,023.71/19,747.72
  6. Step 6: Final answer
    x = 17,802.31

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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.