Home / 16,986.06-23,439.22-9,911.12

Finding the Fourth Proportional to 16,986.06, 23,439.22 and 9,911.12

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Solution

The fourth proportional to 16,986.06, 23,439.22 and 9,911.12 is: 13,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.06 : 23,439.22 = 9,911.12 : x
  2. Step 2: Convert to fraction form
    16,986.06/23,439.22 = 9,911.12/x
  3. Step 3: Cross multiply
    16,986.06x = 23,439.22 × 9,911.12
  4. Step 4: Simplify right side
    16,986.06x = 232,308,922.13
  5. Step 5: Solve for x
    x = 232,308,922.13/16,986.06
  6. Step 6: Final answer
    x = 13,676.45

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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.