Home / 13,176.32-19,764.37-5,379.66

Finding the Fourth Proportional to 13,176.32, 19,764.37 and 5,379.66

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Solution

The fourth proportional to 13,176.32, 19,764.37 and 5,379.66 is: 8,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.32 : 19,764.37 = 5,379.66 : x
  2. Step 2: Convert to fraction form
    13,176.32/19,764.37 = 5,379.66/x
  3. Step 3: Cross multiply
    13,176.32x = 19,764.37 × 5,379.66
  4. Step 4: Simplify right side
    13,176.32x = 106,325,563.82
  5. Step 5: Solve for x
    x = 106,325,563.82/13,176.32
  6. Step 6: Final answer
    x = 8,069.45

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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.