Home / 12,400.43-18,563.73-8,225.99

Finding the Fourth Proportional to 12,400.43, 18,563.73 and 8,225.99

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Solution

The fourth proportional to 12,400.43, 18,563.73 and 8,225.99 is: 12,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.43 : 18,563.73 = 8,225.99 : x
  2. Step 2: Convert to fraction form
    12,400.43/18,563.73 = 8,225.99/x
  3. Step 3: Cross multiply
    12,400.43x = 18,563.73 × 8,225.99
  4. Step 4: Simplify right side
    12,400.43x = 152,704,964.52
  5. Step 5: Solve for x
    x = 152,704,964.52/12,400.43
  6. Step 6: Final answer
    x = 12,314.49

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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.