Home / 13,176.57-19,764.74-5,379.91

Finding the Fourth Proportional to 13,176.57, 19,764.74 and 5,379.91

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Solution

The fourth proportional to 13,176.57, 19,764.74 and 5,379.91 is: 8,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.57 : 19,764.74 = 5,379.91 : x
  2. Step 2: Convert to fraction form
    13,176.57/19,764.74 = 5,379.91/x
  3. Step 3: Cross multiply
    13,176.57x = 19,764.74 × 5,379.91
  4. Step 4: Simplify right side
    13,176.57x = 106,332,522.37
  5. Step 5: Solve for x
    x = 106,332,522.37/13,176.57
  6. Step 6: Final answer
    x = 8,069.82

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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.