Home / 13,498.64-20,248.43-3,638.16

Finding the Fourth Proportional to 13,498.64, 20,248.43 and 3,638.16

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Solution

The fourth proportional to 13,498.64, 20,248.43 and 3,638.16 is: 5,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.64 : 20,248.43 = 3,638.16 : x
  2. Step 2: Convert to fraction form
    13,498.64/20,248.43 = 3,638.16/x
  3. Step 3: Cross multiply
    13,498.64x = 20,248.43 × 3,638.16
  4. Step 4: Simplify right side
    13,498.64x = 73,667,028.09
  5. Step 5: Solve for x
    x = 73,667,028.09/13,498.64
  6. Step 6: Final answer
    x = 5,457.37

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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.