Home / 13,170.96-19,756.45-5,379.77

Finding the Fourth Proportional to 13,170.96, 19,756.45 and 5,379.77

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Solution

The fourth proportional to 13,170.96, 19,756.45 and 5,379.77 is: 8,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.96 : 19,756.45 = 5,379.77 : x
  2. Step 2: Convert to fraction form
    13,170.96/19,756.45 = 5,379.77/x
  3. Step 3: Cross multiply
    13,170.96x = 19,756.45 × 5,379.77
  4. Step 4: Simplify right side
    13,170.96x = 106,285,157.02
  5. Step 5: Solve for x
    x = 106,285,157.02/13,170.96
  6. Step 6: Final answer
    x = 8,069.66

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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.