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Finding the Fourth Proportional to 13,695.01, 18,899.10 and 7,407.37

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Solution

The fourth proportional to 13,695.01, 18,899.10 and 7,407.37 is: 10,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.01 : 18,899.10 = 7,407.37 : x
  2. Step 2: Convert to fraction form
    13,695.01/18,899.10 = 7,407.37/x
  3. Step 3: Cross multiply
    13,695.01x = 18,899.10 × 7,407.37
  4. Step 4: Simplify right side
    13,695.01x = 139,992,626.37
  5. Step 5: Solve for x
    x = 139,992,626.37/13,695.01
  6. Step 6: Final answer
    x = 10,222.16

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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.