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Finding the Fourth Proportional to 19,158.50, 26,438.73 and 10,775.18

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Solution

The fourth proportional to 19,158.50, 26,438.73 and 10,775.18 is: 14,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.50 : 26,438.73 = 10,775.18 : x
  2. Step 2: Convert to fraction form
    19,158.50/26,438.73 = 10,775.18/x
  3. Step 3: Cross multiply
    19,158.50x = 26,438.73 × 10,775.18
  4. Step 4: Simplify right side
    19,158.50x = 284,882,074.72
  5. Step 5: Solve for x
    x = 284,882,074.72/19,158.50
  6. Step 6: Final answer
    x = 14,869.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.