Home / 19,845.98-29,761.47-7,995.74

Finding the Fourth Proportional to 19,845.98, 29,761.47 and 7,995.74

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Solution

The fourth proportional to 19,845.98, 29,761.47 and 7,995.74 is: 11,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.98 : 29,761.47 = 7,995.74 : x
  2. Step 2: Convert to fraction form
    19,845.98/29,761.47 = 7,995.74/x
  3. Step 3: Cross multiply
    19,845.98x = 29,761.47 × 7,995.74
  4. Step 4: Simplify right side
    19,845.98x = 237,964,827.33
  5. Step 5: Solve for x
    x = 237,964,827.33/19,845.98
  6. Step 6: Final answer
    x = 11,990.58

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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.