Home / 13,775.58-20,651.87-6,385.34

Finding the Fourth Proportional to 13,775.58, 20,651.87 and 6,385.34

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Solution

The fourth proportional to 13,775.58, 20,651.87 and 6,385.34 is: 9,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.58 : 20,651.87 = 6,385.34 : x
  2. Step 2: Convert to fraction form
    13,775.58/20,651.87 = 6,385.34/x
  3. Step 3: Cross multiply
    13,775.58x = 20,651.87 × 6,385.34
  4. Step 4: Simplify right side
    13,775.58x = 131,869,211.59
  5. Step 5: Solve for x
    x = 131,869,211.59/13,775.58
  6. Step 6: Final answer
    x = 9,572.68

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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.