Home / 11,929.56-16,466.13-7,450.80

Finding the Fourth Proportional to 11,929.56, 16,466.13 and 7,450.80

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Solution

The fourth proportional to 11,929.56, 16,466.13 and 7,450.80 is: 10,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.56 : 16,466.13 = 7,450.80 : x
  2. Step 2: Convert to fraction form
    11,929.56/16,466.13 = 7,450.80/x
  3. Step 3: Cross multiply
    11,929.56x = 16,466.13 × 7,450.80
  4. Step 4: Simplify right side
    11,929.56x = 122,685,841.40
  5. Step 5: Solve for x
    x = 122,685,841.40/11,929.56
  6. Step 6: Final answer
    x = 10,284.19

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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.