Home / 12,984.60-17,921.08-12,392.97

Finding the Fourth Proportional to 12,984.60, 17,921.08 and 12,392.97

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Solution

The fourth proportional to 12,984.60, 17,921.08 and 12,392.97 is: 17,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.60 : 17,921.08 = 12,392.97 : x
  2. Step 2: Convert to fraction form
    12,984.60/17,921.08 = 12,392.97/x
  3. Step 3: Cross multiply
    12,984.60x = 17,921.08 × 12,392.97
  4. Step 4: Simplify right side
    12,984.60x = 222,095,406.81
  5. Step 5: Solve for x
    x = 222,095,406.81/12,984.60
  6. Step 6: Final answer
    x = 17,104.52

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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.