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Finding the Fourth Proportional to 18,692.73, 28,014.30 and 10,782.77

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Solution

The fourth proportional to 18,692.73, 28,014.30 and 10,782.77 is: 16,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.73 : 28,014.30 = 10,782.77 : x
  2. Step 2: Convert to fraction form
    18,692.73/28,014.30 = 10,782.77/x
  3. Step 3: Cross multiply
    18,692.73x = 28,014.30 × 10,782.77
  4. Step 4: Simplify right side
    18,692.73x = 302,071,613.54
  5. Step 5: Solve for x
    x = 302,071,613.54/18,692.73
  6. Step 6: Final answer
    x = 16,159.84

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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.