Home / 13,629.32-20,445.66-4,865.16

Finding the Fourth Proportional to 13,629.32, 20,445.66 and 4,865.16

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Solution

The fourth proportional to 13,629.32, 20,445.66 and 4,865.16 is: 7,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.32 : 20,445.66 = 4,865.16 : x
  2. Step 2: Convert to fraction form
    13,629.32/20,445.66 = 4,865.16/x
  3. Step 3: Cross multiply
    13,629.32x = 20,445.66 × 4,865.16
  4. Step 4: Simplify right side
    13,629.32x = 99,471,407.21
  5. Step 5: Solve for x
    x = 99,471,407.21/13,629.32
  6. Step 6: Final answer
    x = 7,298.34

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Why These Related Problems?

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