Home / 18,401.04-25,363.80-12,422.30

Finding the Fourth Proportional to 18,401.04, 25,363.80 and 12,422.30

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Solution

The fourth proportional to 18,401.04, 25,363.80 and 12,422.30 is: 17,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.04 : 25,363.80 = 12,422.30 : x
  2. Step 2: Convert to fraction form
    18,401.04/25,363.80 = 12,422.30/x
  3. Step 3: Cross multiply
    18,401.04x = 25,363.80 × 12,422.30
  4. Step 4: Simplify right side
    18,401.04x = 315,076,605.92
  5. Step 5: Solve for x
    x = 315,076,605.92/18,401.04
  6. Step 6: Final answer
    x = 17,122.76

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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.