Home / 11,918.52-16,434.60-7,440.66

Finding the Fourth Proportional to 11,918.52, 16,434.60 and 7,440.66

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Solution

The fourth proportional to 11,918.52, 16,434.60 and 7,440.66 is: 10,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.52 : 16,434.60 = 7,440.66 : x
  2. Step 2: Convert to fraction form
    11,918.52/16,434.60 = 7,440.66/x
  3. Step 3: Cross multiply
    11,918.52x = 16,434.60 × 7,440.66
  4. Step 4: Simplify right side
    11,918.52x = 122,284,270.84
  5. Step 5: Solve for x
    x = 122,284,270.84/11,918.52
  6. Step 6: Final answer
    x = 10,260.02

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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.