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Finding the Fourth Proportional to 13,587.14, 18,749.16 and 7,618.01

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Solution

The fourth proportional to 13,587.14, 18,749.16 and 7,618.01 is: 10,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.14 : 18,749.16 = 7,618.01 : x
  2. Step 2: Convert to fraction form
    13,587.14/18,749.16 = 7,618.01/x
  3. Step 3: Cross multiply
    13,587.14x = 18,749.16 × 7,618.01
  4. Step 4: Simplify right side
    13,587.14x = 142,831,194.63
  5. Step 5: Solve for x
    x = 142,831,194.63/13,587.14
  6. Step 6: Final answer
    x = 10,512.24

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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.