Home / 12,419.31-18,642.23-5,028.60

Finding the Fourth Proportional to 12,419.31, 18,642.23 and 5,028.60

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Solution

The fourth proportional to 12,419.31, 18,642.23 and 5,028.60 is: 7,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.31 : 18,642.23 = 5,028.60 : x
  2. Step 2: Convert to fraction form
    12,419.31/18,642.23 = 5,028.60/x
  3. Step 3: Cross multiply
    12,419.31x = 18,642.23 × 5,028.60
  4. Step 4: Simplify right side
    12,419.31x = 93,744,292.64
  5. Step 5: Solve for x
    x = 93,744,292.64/12,419.31
  6. Step 6: Final answer
    x = 7,548.27

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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.