Home / 12,929.57-17,840.66-7,625.44

Finding the Fourth Proportional to 12,929.57, 17,840.66 and 7,625.44

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Solution

The fourth proportional to 12,929.57, 17,840.66 and 7,625.44 is: 10,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.57 : 17,840.66 = 7,625.44 : x
  2. Step 2: Convert to fraction form
    12,929.57/17,840.66 = 7,625.44/x
  3. Step 3: Cross multiply
    12,929.57x = 17,840.66 × 7,625.44
  4. Step 4: Simplify right side
    12,929.57x = 136,042,866.56
  5. Step 5: Solve for x
    x = 136,042,866.56/12,929.57
  6. Step 6: Final answer
    x = 10,521.84

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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.