Home / 18,190.61-27,242.15-12,329.45

Finding the Fourth Proportional to 18,190.61, 27,242.15 and 12,329.45

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Solution

The fourth proportional to 18,190.61, 27,242.15 and 12,329.45 is: 18,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.61 : 27,242.15 = 12,329.45 : x
  2. Step 2: Convert to fraction form
    18,190.61/27,242.15 = 12,329.45/x
  3. Step 3: Cross multiply
    18,190.61x = 27,242.15 × 12,329.45
  4. Step 4: Simplify right side
    18,190.61x = 335,880,732.78
  5. Step 5: Solve for x
    x = 335,880,732.78/18,190.61
  6. Step 6: Final answer
    x = 18,464.51

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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.