Home / 16,817.15-23,190.08-12,561.54

Finding the Fourth Proportional to 16,817.15, 23,190.08 and 12,561.54

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Solution

The fourth proportional to 16,817.15, 23,190.08 and 12,561.54 is: 17,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,817.15 : 23,190.08 = 12,561.54 : x
  2. Step 2: Convert to fraction form
    16,817.15/23,190.08 = 12,561.54/x
  3. Step 3: Cross multiply
    16,817.15x = 23,190.08 × 12,561.54
  4. Step 4: Simplify right side
    16,817.15x = 291,303,054.72
  5. Step 5: Solve for x
    x = 291,303,054.72/16,817.15
  6. Step 6: Final answer
    x = 17,321.79

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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.