Home / 19,918.58-29,859.16-6,761.76

Finding the Fourth Proportional to 19,918.58, 29,859.16 and 6,761.76

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Solution

The fourth proportional to 19,918.58, 29,859.16 and 6,761.76 is: 10,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.58 : 29,859.16 = 6,761.76 : x
  2. Step 2: Convert to fraction form
    19,918.58/29,859.16 = 6,761.76/x
  3. Step 3: Cross multiply
    19,918.58x = 29,859.16 × 6,761.76
  4. Step 4: Simplify right side
    19,918.58x = 201,900,473.72
  5. Step 5: Solve for x
    x = 201,900,473.72/19,918.58
  6. Step 6: Final answer
    x = 10,136.29

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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.