Home / 16,781.68-23,159.32-9,228.60

Finding the Fourth Proportional to 16,781.68, 23,159.32 and 9,228.60

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Solution

The fourth proportional to 16,781.68, 23,159.32 and 9,228.60 is: 12,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.68 : 23,159.32 = 9,228.60 : x
  2. Step 2: Convert to fraction form
    16,781.68/23,159.32 = 9,228.60/x
  3. Step 3: Cross multiply
    16,781.68x = 23,159.32 × 9,228.60
  4. Step 4: Simplify right side
    16,781.68x = 213,728,100.55
  5. Step 5: Solve for x
    x = 213,728,100.55/16,781.68
  6. Step 6: Final answer
    x = 12,735.80

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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.