Home / 14,121.38-19,485.42-7,833.80

Finding the Fourth Proportional to 14,121.38, 19,485.42 and 7,833.80

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Solution

The fourth proportional to 14,121.38, 19,485.42 and 7,833.80 is: 10,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.38 : 19,485.42 = 7,833.80 : x
  2. Step 2: Convert to fraction form
    14,121.38/19,485.42 = 7,833.80/x
  3. Step 3: Cross multiply
    14,121.38x = 19,485.42 × 7,833.80
  4. Step 4: Simplify right side
    14,121.38x = 152,644,883.20
  5. Step 5: Solve for x
    x = 152,644,883.20/14,121.38
  6. Step 6: Final answer
    x = 10,809.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.