Home / 11,947.16-17,918.35-11,354.39

Finding the Fourth Proportional to 11,947.16, 17,918.35 and 11,354.39

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Solution

The fourth proportional to 11,947.16, 17,918.35 and 11,354.39 is: 17,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.16 : 17,918.35 = 11,354.39 : x
  2. Step 2: Convert to fraction form
    11,947.16/17,918.35 = 11,354.39/x
  3. Step 3: Cross multiply
    11,947.16x = 17,918.35 × 11,354.39
  4. Step 4: Simplify right side
    11,947.16x = 203,451,984.06
  5. Step 5: Solve for x
    x = 203,451,984.06/11,947.16
  6. Step 6: Final answer
    x = 17,029.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.