Home / 12,171.54-16,795.47-8,986.53

Finding the Fourth Proportional to 12,171.54, 16,795.47 and 8,986.53

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Solution

The fourth proportional to 12,171.54, 16,795.47 and 8,986.53 is: 12,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.54 : 16,795.47 = 8,986.53 : x
  2. Step 2: Convert to fraction form
    12,171.54/16,795.47 = 8,986.53/x
  3. Step 3: Cross multiply
    12,171.54x = 16,795.47 × 8,986.53
  4. Step 4: Simplify right side
    12,171.54x = 150,932,995.02
  5. Step 5: Solve for x
    x = 150,932,995.02/12,171.54
  6. Step 6: Final answer
    x = 12,400.48

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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.