Home / 18,381.46-25,372.14-10,428.94

Finding the Fourth Proportional to 18,381.46, 25,372.14 and 10,428.94

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Solution

The fourth proportional to 18,381.46, 25,372.14 and 10,428.94 is: 14,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.46 : 25,372.14 = 10,428.94 : x
  2. Step 2: Convert to fraction form
    18,381.46/25,372.14 = 10,428.94/x
  3. Step 3: Cross multiply
    18,381.46x = 25,372.14 × 10,428.94
  4. Step 4: Simplify right side
    18,381.46x = 264,604,525.73
  5. Step 5: Solve for x
    x = 264,604,525.73/18,381.46
  6. Step 6: Final answer
    x = 14,395.19

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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.