Home / 13,554.90-20,329.98-3,692.88

Finding the Fourth Proportional to 13,554.90, 20,329.98 and 3,692.88

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Solution

The fourth proportional to 13,554.90, 20,329.98 and 3,692.88 is: 5,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.90 : 20,329.98 = 3,692.88 : x
  2. Step 2: Convert to fraction form
    13,554.90/20,329.98 = 3,692.88/x
  3. Step 3: Cross multiply
    13,554.90x = 20,329.98 × 3,692.88
  4. Step 4: Simplify right side
    13,554.90x = 75,076,176.54
  5. Step 5: Solve for x
    x = 75,076,176.54/13,554.90
  6. Step 6: Final answer
    x = 5,538.67

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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.