Home / 15,825.05-21,835.02-9,450.49

Finding the Fourth Proportional to 15,825.05, 21,835.02 and 9,450.49

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Solution

The fourth proportional to 15,825.05, 21,835.02 and 9,450.49 is: 13,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.05 : 21,835.02 = 9,450.49 : x
  2. Step 2: Convert to fraction form
    15,825.05/21,835.02 = 9,450.49/x
  3. Step 3: Cross multiply
    15,825.05x = 21,835.02 × 9,450.49
  4. Step 4: Simplify right side
    15,825.05x = 206,351,606.79
  5. Step 5: Solve for x
    x = 206,351,606.79/15,825.05
  6. Step 6: Final answer
    x = 13,039.55

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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.