Home / 19,790.94-29,687.63-8,702.85

Finding the Fourth Proportional to 19,790.94, 29,687.63 and 8,702.85

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Solution

The fourth proportional to 19,790.94, 29,687.63 and 8,702.85 is: 13,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.94 : 29,687.63 = 8,702.85 : x
  2. Step 2: Convert to fraction form
    19,790.94/29,687.63 = 8,702.85/x
  3. Step 3: Cross multiply
    19,790.94x = 29,687.63 × 8,702.85
  4. Step 4: Simplify right side
    19,790.94x = 258,366,947.23
  5. Step 5: Solve for x
    x = 258,366,947.23/19,790.94
  6. Step 6: Final answer
    x = 13,054.81

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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.