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Finding the Fourth Proportional to 14,647.50, 20,213.55 and 8,360.01

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Solution

The fourth proportional to 14,647.50, 20,213.55 and 8,360.01 is: 11,536.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.50 : 20,213.55 = 8,360.01 : x
  2. Step 2: Convert to fraction form
    14,647.50/20,213.55 = 8,360.01/x
  3. Step 3: Cross multiply
    14,647.50x = 20,213.55 × 8,360.01
  4. Step 4: Simplify right side
    14,647.50x = 168,985,480.14
  5. Step 5: Solve for x
    x = 168,985,480.14/14,647.50
  6. Step 6: Final answer
    x = 11,536.81

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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.