Home / 17,721.80-26,576.40-7,843.40

Finding the Fourth Proportional to 17,721.80, 26,576.40 and 7,843.40

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Solution

The fourth proportional to 17,721.80, 26,576.40 and 7,843.40 is: 11,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.80 : 26,576.40 = 7,843.40 : x
  2. Step 2: Convert to fraction form
    17,721.80/26,576.40 = 7,843.40/x
  3. Step 3: Cross multiply
    17,721.80x = 26,576.40 × 7,843.40
  4. Step 4: Simplify right side
    17,721.80x = 208,449,335.76
  5. Step 5: Solve for x
    x = 208,449,335.76/17,721.80
  6. Step 6: Final answer
    x = 11,762.31

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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.