Home / 16,680.49-23,015.41-9,965.09

Finding the Fourth Proportional to 16,680.49, 23,015.41 and 9,965.09

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Solution

The fourth proportional to 16,680.49, 23,015.41 and 9,965.09 is: 13,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.49 : 23,015.41 = 9,965.09 : x
  2. Step 2: Convert to fraction form
    16,680.49/23,015.41 = 9,965.09/x
  3. Step 3: Cross multiply
    16,680.49x = 23,015.41 × 9,965.09
  4. Step 4: Simplify right side
    16,680.49x = 229,350,632.04
  5. Step 5: Solve for x
    x = 229,350,632.04/16,680.49
  6. Step 6: Final answer
    x = 13,749.63

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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.