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Finding the Fourth Proportional to 13,763.95, 18,997.28 and 9,048.67

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Solution

The fourth proportional to 13,763.95, 18,997.28 and 9,048.67 is: 12,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.95 : 18,997.28 = 9,048.67 : x
  2. Step 2: Convert to fraction form
    13,763.95/18,997.28 = 9,048.67/x
  3. Step 3: Cross multiply
    13,763.95x = 18,997.28 × 9,048.67
  4. Step 4: Simplify right side
    13,763.95x = 171,900,117.62
  5. Step 5: Solve for x
    x = 171,900,117.62/13,763.95
  6. Step 6: Final answer
    x = 12,489.16

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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.