Home / 11,918.93-16,441.28-7,434.89

Finding the Fourth Proportional to 11,918.93, 16,441.28 and 7,434.89

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Solution

The fourth proportional to 11,918.93, 16,441.28 and 7,434.89 is: 10,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.93 : 16,441.28 = 7,434.89 : x
  2. Step 2: Convert to fraction form
    11,918.93/16,441.28 = 7,434.89/x
  3. Step 3: Cross multiply
    11,918.93x = 16,441.28 × 7,434.89
  4. Step 4: Simplify right side
    11,918.93x = 122,239,108.26
  5. Step 5: Solve for x
    x = 122,239,108.26/11,918.93
  6. Step 6: Final answer
    x = 10,255.88

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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.