Home / 15,799.28-21,803.06-8,629.26

Finding the Fourth Proportional to 15,799.28, 21,803.06 and 8,629.26

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Solution

The fourth proportional to 15,799.28, 21,803.06 and 8,629.26 is: 11,908.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.28 : 21,803.06 = 8,629.26 : x
  2. Step 2: Convert to fraction form
    15,799.28/21,803.06 = 8,629.26/x
  3. Step 3: Cross multiply
    15,799.28x = 21,803.06 × 8,629.26
  4. Step 4: Simplify right side
    15,799.28x = 188,144,230.39
  5. Step 5: Solve for x
    x = 188,144,230.39/15,799.28
  6. Step 6: Final answer
    x = 11,908.41

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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.