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Finding the Fourth Proportional to 14,692.86, 20,269.08 and 8,401.50

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Solution

The fourth proportional to 14,692.86, 20,269.08 and 8,401.50 is: 11,590.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.86 : 20,269.08 = 8,401.50 : x
  2. Step 2: Convert to fraction form
    14,692.86/20,269.08 = 8,401.50/x
  3. Step 3: Cross multiply
    14,692.86x = 20,269.08 × 8,401.50
  4. Step 4: Simplify right side
    14,692.86x = 170,290,675.62
  5. Step 5: Solve for x
    x = 170,290,675.62/14,692.86
  6. Step 6: Final answer
    x = 11,590.03

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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.