Home / 13,476.08-20,217.32-4,242

Finding the Fourth Proportional to 13,476.08, 20,217.32 and 4,242

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Solution

The fourth proportional to 13,476.08, 20,217.32 and 4,242 is: 6,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.08 : 20,217.32 = 4,242 : x
  2. Step 2: Convert to fraction form
    13,476.08/20,217.32 = 4,242/x
  3. Step 3: Cross multiply
    13,476.08x = 20,217.32 × 4,242
  4. Step 4: Simplify right side
    13,476.08x = 85,761,871.44
  5. Step 5: Solve for x
    x = 85,761,871.44/13,476.08
  6. Step 6: Final answer
    x = 6,364.01

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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.