Home / 12,112.41-16,708.31-7,628.46

Finding the Fourth Proportional to 12,112.41, 16,708.31 and 7,628.46

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Solution

The fourth proportional to 12,112.41, 16,708.31 and 7,628.46 is: 10,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.41 : 16,708.31 = 7,628.46 : x
  2. Step 2: Convert to fraction form
    12,112.41/16,708.31 = 7,628.46/x
  3. Step 3: Cross multiply
    12,112.41x = 16,708.31 × 7,628.46
  4. Step 4: Simplify right side
    12,112.41x = 127,458,636.36
  5. Step 5: Solve for x
    x = 127,458,636.36/12,112.41
  6. Step 6: Final answer
    x = 10,522.98

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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.