Home / 12,647.37-17,455.73-7,272.95

Finding the Fourth Proportional to 12,647.37, 17,455.73 and 7,272.95

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Solution

The fourth proportional to 12,647.37, 17,455.73 and 7,272.95 is: 10,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.37 : 17,455.73 = 7,272.95 : x
  2. Step 2: Convert to fraction form
    12,647.37/17,455.73 = 7,272.95/x
  3. Step 3: Cross multiply
    12,647.37x = 17,455.73 × 7,272.95
  4. Step 4: Simplify right side
    12,647.37x = 126,954,658.78
  5. Step 5: Solve for x
    x = 126,954,658.78/12,647.37
  6. Step 6: Final answer
    x = 10,038.03

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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.