Home / 10,482-15,721.88-3,086.48

Finding the Fourth Proportional to 10,482, 15,721.88 and 3,086.48

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Solution

The fourth proportional to 10,482, 15,721.88 and 3,086.48 is: 4,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,482 : 15,721.88 = 3,086.48 : x
  2. Step 2: Convert to fraction form
    10,482/15,721.88 = 3,086.48/x
  3. Step 3: Cross multiply
    10,482x = 15,721.88 × 3,086.48
  4. Step 4: Simplify right side
    10,482x = 48,525,268.18
  5. Step 5: Solve for x
    x = 48,525,268.18/10,482
  6. Step 6: Final answer
    x = 4,629.39

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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.