Home / 12,918.92-17,828.66-7,330.44

Finding the Fourth Proportional to 12,918.92, 17,828.66 and 7,330.44

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Solution

The fourth proportional to 12,918.92, 17,828.66 and 7,330.44 is: 10,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.92 : 17,828.66 = 7,330.44 : x
  2. Step 2: Convert to fraction form
    12,918.92/17,828.66 = 7,330.44/x
  3. Step 3: Cross multiply
    12,918.92x = 17,828.66 × 7,330.44
  4. Step 4: Simplify right side
    12,918.92x = 130,691,922.41
  5. Step 5: Solve for x
    x = 130,691,922.41/12,918.92
  6. Step 6: Final answer
    x = 10,116.32

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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.