Home / 13,853.92-19,113.90-8,188.84

Finding the Fourth Proportional to 13,853.92, 19,113.90 and 8,188.84

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Solution

The fourth proportional to 13,853.92, 19,113.90 and 8,188.84 is: 11,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.92 : 19,113.90 = 8,188.84 : x
  2. Step 2: Convert to fraction form
    13,853.92/19,113.90 = 8,188.84/x
  3. Step 3: Cross multiply
    13,853.92x = 19,113.90 × 8,188.84
  4. Step 4: Simplify right side
    13,853.92x = 156,520,668.88
  5. Step 5: Solve for x
    x = 156,520,668.88/13,853.92
  6. Step 6: Final answer
    x = 11,297.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.