Home / 11,930.94-16,466.21-7,215.25

Finding the Fourth Proportional to 11,930.94, 16,466.21 and 7,215.25

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Solution

The fourth proportional to 11,930.94, 16,466.21 and 7,215.25 is: 9,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.94 : 16,466.21 = 7,215.25 : x
  2. Step 2: Convert to fraction form
    11,930.94/16,466.21 = 7,215.25/x
  3. Step 3: Cross multiply
    11,930.94x = 16,466.21 × 7,215.25
  4. Step 4: Simplify right side
    11,930.94x = 118,807,821.70
  5. Step 5: Solve for x
    x = 118,807,821.70/11,930.94
  6. Step 6: Final answer
    x = 9,957.96

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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.