Home / 19,673.31-29,509.71-11,778.03

Finding the Fourth Proportional to 19,673.31, 29,509.71 and 11,778.03

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Solution

The fourth proportional to 19,673.31, 29,509.71 and 11,778.03 is: 17,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.31 : 29,509.71 = 11,778.03 : x
  2. Step 2: Convert to fraction form
    19,673.31/29,509.71 = 11,778.03/x
  3. Step 3: Cross multiply
    19,673.31x = 29,509.71 × 11,778.03
  4. Step 4: Simplify right side
    19,673.31x = 347,566,249.67
  5. Step 5: Solve for x
    x = 347,566,249.67/19,673.31
  6. Step 6: Final answer
    x = 17,666.89

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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.