Home / 12,614.50-18,909.99-4,288.83

Finding the Fourth Proportional to 12,614.50, 18,909.99 and 4,288.83

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Solution

The fourth proportional to 12,614.50, 18,909.99 and 4,288.83 is: 6,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.50 : 18,909.99 = 4,288.83 : x
  2. Step 2: Convert to fraction form
    12,614.50/18,909.99 = 4,288.83/x
  3. Step 3: Cross multiply
    12,614.50x = 18,909.99 × 4,288.83
  4. Step 4: Simplify right side
    12,614.50x = 81,101,732.41
  5. Step 5: Solve for x
    x = 81,101,732.41/12,614.50
  6. Step 6: Final answer
    x = 6,429.25

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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.