Home / 19,790.70-29,692.16-8,104.84

Finding the Fourth Proportional to 19,790.70, 29,692.16 and 8,104.84

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Solution

The fourth proportional to 19,790.70, 29,692.16 and 8,104.84 is: 12,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.70 : 29,692.16 = 8,104.84 : x
  2. Step 2: Convert to fraction form
    19,790.70/29,692.16 = 8,104.84/x
  3. Step 3: Cross multiply
    19,790.70x = 29,692.16 × 8,104.84
  4. Step 4: Simplify right side
    19,790.70x = 240,650,206.05
  5. Step 5: Solve for x
    x = 240,650,206.05/19,790.70
  6. Step 6: Final answer
    x = 12,159.76

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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.