Home / 11,922.75-17,869.05-10,438.34

Finding the Fourth Proportional to 11,922.75, 17,869.05 and 10,438.34

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Solution

The fourth proportional to 11,922.75, 17,869.05 and 10,438.34 is: 15,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.75 : 17,869.05 = 10,438.34 : x
  2. Step 2: Convert to fraction form
    11,922.75/17,869.05 = 10,438.34/x
  3. Step 3: Cross multiply
    11,922.75x = 17,869.05 × 10,438.34
  4. Step 4: Simplify right side
    11,922.75x = 186,523,130.03
  5. Step 5: Solve for x
    x = 186,523,130.03/11,922.75
  6. Step 6: Final answer
    x = 15,644.30

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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.