Home / 12,844.90-19,230.90-9,904.60

Finding the Fourth Proportional to 12,844.90, 19,230.90 and 9,904.60

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Solution

The fourth proportional to 12,844.90, 19,230.90 and 9,904.60 is: 14,828.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844.90 : 19,230.90 = 9,904.60 : x
  2. Step 2: Convert to fraction form
    12,844.90/19,230.90 = 9,904.60/x
  3. Step 3: Cross multiply
    12,844.90x = 19,230.90 × 9,904.60
  4. Step 4: Simplify right side
    12,844.90x = 190,474,372.14
  5. Step 5: Solve for x
    x = 190,474,372.14/12,844.90
  6. Step 6: Final answer
    x = 14,828.79

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1.5x scale

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.