Home / 13,346.80-20,003.40-6,774.80

Finding the Fourth Proportional to 13,346.80, 20,003.40 and 6,774.80

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Solution

The fourth proportional to 13,346.80, 20,003.40 and 6,774.80 is: 10,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.80 : 20,003.40 = 6,774.80 : x
  2. Step 2: Convert to fraction form
    13,346.80/20,003.40 = 6,774.80/x
  3. Step 3: Cross multiply
    13,346.80x = 20,003.40 × 6,774.80
  4. Step 4: Simplify right side
    13,346.80x = 135,519,034.32
  5. Step 5: Solve for x
    x = 135,519,034.32/13,346.80
  6. Step 6: Final answer
    x = 10,153.67

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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.