Home / 11,869.42-17,771.32-8,938.84

Finding the Fourth Proportional to 11,869.42, 17,771.32 and 8,938.84

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Solution

The fourth proportional to 11,869.42, 17,771.32 and 8,938.84 is: 13,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.42 : 17,771.32 = 8,938.84 : x
  2. Step 2: Convert to fraction form
    11,869.42/17,771.32 = 8,938.84/x
  3. Step 3: Cross multiply
    11,869.42x = 17,771.32 × 8,938.84
  4. Step 4: Simplify right side
    11,869.42x = 158,854,986.07
  5. Step 5: Solve for x
    x = 158,854,986.07/11,869.42
  6. Step 6: Final answer
    x = 13,383.55

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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.