Home / 14,663.83-20,229.78-8,692.30

Finding the Fourth Proportional to 14,663.83, 20,229.78 and 8,692.30

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Solution

The fourth proportional to 14,663.83, 20,229.78 and 8,692.30 is: 11,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.83 : 20,229.78 = 8,692.30 : x
  2. Step 2: Convert to fraction form
    14,663.83/20,229.78 = 8,692.30/x
  3. Step 3: Cross multiply
    14,663.83x = 20,229.78 × 8,692.30
  4. Step 4: Simplify right side
    14,663.83x = 175,843,316.69
  5. Step 5: Solve for x
    x = 175,843,316.69/14,663.83
  6. Step 6: Final answer
    x = 11,991.64

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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.