Home / 19,549.80-29,339.82-7,872.84

Finding the Fourth Proportional to 19,549.80, 29,339.82 and 7,872.84

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Solution

The fourth proportional to 19,549.80, 29,339.82 and 7,872.84 is: 11,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,549.80 : 29,339.82 = 7,872.84 : x
  2. Step 2: Convert to fraction form
    19,549.80/29,339.82 = 7,872.84/x
  3. Step 3: Cross multiply
    19,549.80x = 29,339.82 × 7,872.84
  4. Step 4: Simplify right side
    19,549.80x = 230,987,708.49
  5. Step 5: Solve for x
    x = 230,987,708.49/19,549.80
  6. Step 6: Final answer
    x = 11,815.35

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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.