Home / 19,150.70-26,431.04-11,191.37

Finding the Fourth Proportional to 19,150.70, 26,431.04 and 11,191.37

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Solution

The fourth proportional to 19,150.70, 26,431.04 and 11,191.37 is: 15,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.70 : 26,431.04 = 11,191.37 : x
  2. Step 2: Convert to fraction form
    19,150.70/26,431.04 = 11,191.37/x
  3. Step 3: Cross multiply
    19,150.70x = 26,431.04 × 11,191.37
  4. Step 4: Simplify right side
    19,150.70x = 295,799,443.95
  5. Step 5: Solve for x
    x = 295,799,443.95/19,150.70
  6. Step 6: Final answer
    x = 15,445.89

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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.