Home / 14,074.20-19,431.90-12,890.52

Finding the Fourth Proportional to 14,074.20, 19,431.90 and 12,890.52

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Solution

The fourth proportional to 14,074.20, 19,431.90 and 12,890.52 is: 17,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.20 : 19,431.90 = 12,890.52 : x
  2. Step 2: Convert to fraction form
    14,074.20/19,431.90 = 12,890.52/x
  3. Step 3: Cross multiply
    14,074.20x = 19,431.90 × 12,890.52
  4. Step 4: Simplify right side
    14,074.20x = 250,487,295.59
  5. Step 5: Solve for x
    x = 250,487,295.59/14,074.20
  6. Step 6: Final answer
    x = 17,797.62

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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.