Home / 18,401.84-25,391.04-11,688.56

Finding the Fourth Proportional to 18,401.84, 25,391.04 and 11,688.56

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Solution

The fourth proportional to 18,401.84, 25,391.04 and 11,688.56 is: 16,127.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.84 : 25,391.04 = 11,688.56 : x
  2. Step 2: Convert to fraction form
    18,401.84/25,391.04 = 11,688.56/x
  3. Step 3: Cross multiply
    18,401.84x = 25,391.04 × 11,688.56
  4. Step 4: Simplify right side
    18,401.84x = 296,784,694.50
  5. Step 5: Solve for x
    x = 296,784,694.50/18,401.84
  6. Step 6: Final answer
    x = 16,127.99

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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.