Home / 15,651.48-21,619.73-11,665.66

Finding the Fourth Proportional to 15,651.48, 21,619.73 and 11,665.66

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Solution

The fourth proportional to 15,651.48, 21,619.73 and 11,665.66 is: 16,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.48 : 21,619.73 = 11,665.66 : x
  2. Step 2: Convert to fraction form
    15,651.48/21,619.73 = 11,665.66/x
  3. Step 3: Cross multiply
    15,651.48x = 21,619.73 × 11,665.66
  4. Step 4: Simplify right side
    15,651.48x = 252,208,419.47
  5. Step 5: Solve for x
    x = 252,208,419.47/15,651.48
  6. Step 6: Final answer
    x = 16,114.03

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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.