Home / 12,419.45-18,637.54-4,628.26

Finding the Fourth Proportional to 12,419.45, 18,637.54 and 4,628.26

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Solution

The fourth proportional to 12,419.45, 18,637.54 and 4,628.26 is: 6,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.45 : 18,637.54 = 4,628.26 : x
  2. Step 2: Convert to fraction form
    12,419.45/18,637.54 = 4,628.26/x
  3. Step 3: Cross multiply
    12,419.45x = 18,637.54 × 4,628.26
  4. Step 4: Simplify right side
    12,419.45x = 86,259,380.88
  5. Step 5: Solve for x
    x = 86,259,380.88/12,419.45
  6. Step 6: Final answer
    x = 6,945.51

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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.