Home / 19,984.80-29,974.56-5,194.74

Finding the Fourth Proportional to 19,984.80, 29,974.56 and 5,194.74

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Solution

The fourth proportional to 19,984.80, 29,974.56 and 5,194.74 is: 7,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.80 : 29,974.56 = 5,194.74 : x
  2. Step 2: Convert to fraction form
    19,984.80/29,974.56 = 5,194.74/x
  3. Step 3: Cross multiply
    19,984.80x = 29,974.56 × 5,194.74
  4. Step 4: Simplify right side
    19,984.80x = 155,710,045.81
  5. Step 5: Solve for x
    x = 155,710,045.81/19,984.80
  6. Step 6: Final answer
    x = 7,791.42

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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.