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Finding the Fourth Proportional to 13,490.01, 20,234.16 and 7,925.94

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Solution

The fourth proportional to 13,490.01, 20,234.16 and 7,925.94 is: 11,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.01 : 20,234.16 = 7,925.94 : x
  2. Step 2: Convert to fraction form
    13,490.01/20,234.16 = 7,925.94/x
  3. Step 3: Cross multiply
    13,490.01x = 20,234.16 × 7,925.94
  4. Step 4: Simplify right side
    13,490.01x = 160,374,738.11
  5. Step 5: Solve for x
    x = 160,374,738.11/13,490.01
  6. Step 6: Final answer
    x = 11,888.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.