Home / 14,230.08-19,651.68-12,121.92

Finding the Fourth Proportional to 14,230.08, 19,651.68 and 12,121.92

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Solution

The fourth proportional to 14,230.08, 19,651.68 and 12,121.92 is: 16,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,230.08 : 19,651.68 = 12,121.92 : x
  2. Step 2: Convert to fraction form
    14,230.08/19,651.68 = 12,121.92/x
  3. Step 3: Cross multiply
    14,230.08x = 19,651.68 × 12,121.92
  4. Step 4: Simplify right side
    14,230.08x = 238,216,092.83
  5. Step 5: Solve for x
    x = 238,216,092.83/14,230.08
  6. Step 6: Final answer
    x = 16,740.32

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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.