Home / 19,438.40-26,816.54-11,885.04

Finding the Fourth Proportional to 19,438.40, 26,816.54 and 11,885.04

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Solution

The fourth proportional to 19,438.40, 26,816.54 and 11,885.04 is: 16,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.40 : 26,816.54 = 11,885.04 : x
  2. Step 2: Convert to fraction form
    19,438.40/26,816.54 = 11,885.04/x
  3. Step 3: Cross multiply
    19,438.40x = 26,816.54 × 11,885.04
  4. Step 4: Simplify right side
    19,438.40x = 318,715,591.14
  5. Step 5: Solve for x
    x = 318,715,591.14/19,438.40
  6. Step 6: Final answer
    x = 16,396.19

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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.