Home / 18,396.09-25,385.85-10,438.14

Finding the Fourth Proportional to 18,396.09, 25,385.85 and 10,438.14

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Solution

The fourth proportional to 18,396.09, 25,385.85 and 10,438.14 is: 14,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.09 : 25,385.85 = 10,438.14 : x
  2. Step 2: Convert to fraction form
    18,396.09/25,385.85 = 10,438.14/x
  3. Step 3: Cross multiply
    18,396.09x = 25,385.85 × 10,438.14
  4. Step 4: Simplify right side
    18,396.09x = 264,981,056.32
  5. Step 5: Solve for x
    x = 264,981,056.32/18,396.09
  6. Step 6: Final answer
    x = 14,404.21

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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.