Home / 18,289.09-25,239.42-11,219.41

Finding the Fourth Proportional to 18,289.09, 25,239.42 and 11,219.41

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Solution

The fourth proportional to 18,289.09, 25,239.42 and 11,219.41 is: 15,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.09 : 25,239.42 = 11,219.41 : x
  2. Step 2: Convert to fraction form
    18,289.09/25,239.42 = 11,219.41/x
  3. Step 3: Cross multiply
    18,289.09x = 25,239.42 × 11,219.41
  4. Step 4: Simplify right side
    18,289.09x = 283,171,401.14
  5. Step 5: Solve for x
    x = 283,171,401.14/18,289.09
  6. Step 6: Final answer
    x = 15,483.08

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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.