Home / 13,796.60-20,678.70-6,385.41

Finding the Fourth Proportional to 13,796.60, 20,678.70 and 6,385.41

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Solution

The fourth proportional to 13,796.60, 20,678.70 and 6,385.41 is: 9,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.60 : 20,678.70 = 6,385.41 : x
  2. Step 2: Convert to fraction form
    13,796.60/20,678.70 = 6,385.41/x
  3. Step 3: Cross multiply
    13,796.60x = 20,678.70 × 6,385.41
  4. Step 4: Simplify right side
    13,796.60x = 132,041,977.77
  5. Step 5: Solve for x
    x = 132,041,977.77/13,796.60
  6. Step 6: Final answer
    x = 9,570.62

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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.