Home / 11,945.81-17,918.72-4,154.63

Finding the Fourth Proportional to 11,945.81, 17,918.72 and 4,154.63

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Solution

The fourth proportional to 11,945.81, 17,918.72 and 4,154.63 is: 6,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.81 : 17,918.72 = 4,154.63 : x
  2. Step 2: Convert to fraction form
    11,945.81/17,918.72 = 4,154.63/x
  3. Step 3: Cross multiply
    11,945.81x = 17,918.72 × 4,154.63
  4. Step 4: Simplify right side
    11,945.81x = 74,445,556.89
  5. Step 5: Solve for x
    x = 74,445,556.89/11,945.81
  6. Step 6: Final answer
    x = 6,231.94

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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.