Home / 11,918.63-16,443.45-7,440.68

Finding the Fourth Proportional to 11,918.63, 16,443.45 and 7,440.68

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Solution

The fourth proportional to 11,918.63, 16,443.45 and 7,440.68 is: 10,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.63 : 16,443.45 = 7,440.68 : x
  2. Step 2: Convert to fraction form
    11,918.63/16,443.45 = 7,440.68/x
  3. Step 3: Cross multiply
    11,918.63x = 16,443.45 × 7,440.68
  4. Step 4: Simplify right side
    11,918.63x = 122,350,367.33
  5. Step 5: Solve for x
    x = 122,350,367.33/11,918.63
  6. Step 6: Final answer
    x = 10,265.48

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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.