Home / 15,849.09-21,871.89-9,560.25

Finding the Fourth Proportional to 15,849.09, 21,871.89 and 9,560.25

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Solution

The fourth proportional to 15,849.09, 21,871.89 and 9,560.25 is: 13,193.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.09 : 21,871.89 = 9,560.25 : x
  2. Step 2: Convert to fraction form
    15,849.09/21,871.89 = 9,560.25/x
  3. Step 3: Cross multiply
    15,849.09x = 21,871.89 × 9,560.25
  4. Step 4: Simplify right side
    15,849.09x = 209,100,736.37
  5. Step 5: Solve for x
    x = 209,100,736.37/15,849.09
  6. Step 6: Final answer
    x = 13,193.23

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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.