Home / 18,811.84-25,960.26-10,428.34

Finding the Fourth Proportional to 18,811.84, 25,960.26 and 10,428.34

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Solution

The fourth proportional to 18,811.84, 25,960.26 and 10,428.34 is: 14,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.84 : 25,960.26 = 10,428.34 : x
  2. Step 2: Convert to fraction form
    18,811.84/25,960.26 = 10,428.34/x
  3. Step 3: Cross multiply
    18,811.84x = 25,960.26 × 10,428.34
  4. Step 4: Simplify right side
    18,811.84x = 270,722,417.77
  5. Step 5: Solve for x
    x = 270,722,417.77/18,811.84
  6. Step 6: Final answer
    x = 14,391.07

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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.