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Finding the Fourth Proportional to 19,152.55, 26,431.55 and 11,199.43

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Solution

The fourth proportional to 19,152.55, 26,431.55 and 11,199.43 is: 15,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.55 : 26,431.55 = 11,199.43 : x
  2. Step 2: Convert to fraction form
    19,152.55/26,431.55 = 11,199.43/x
  3. Step 3: Cross multiply
    19,152.55x = 26,431.55 × 11,199.43
  4. Step 4: Simplify right side
    19,152.55x = 296,018,294.02
  5. Step 5: Solve for x
    x = 296,018,294.02/19,152.55
  6. Step 6: Final answer
    x = 15,455.82

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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.