Home / 14,518.15-20,033.83-8,143.85

Finding the Fourth Proportional to 14,518.15, 20,033.83 and 8,143.85

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Solution

The fourth proportional to 14,518.15, 20,033.83 and 8,143.85 is: 11,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.15 : 20,033.83 = 8,143.85 : x
  2. Step 2: Convert to fraction form
    14,518.15/20,033.83 = 8,143.85/x
  3. Step 3: Cross multiply
    14,518.15x = 20,033.83 × 8,143.85
  4. Step 4: Simplify right side
    14,518.15x = 163,152,506.45
  5. Step 5: Solve for x
    x = 163,152,506.45/14,518.15
  6. Step 6: Final answer
    x = 11,237.83

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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.