Home / 13,358.97-20,038.38-5,459.82

Finding the Fourth Proportional to 13,358.97, 20,038.38 and 5,459.82

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Solution

The fourth proportional to 13,358.97, 20,038.38 and 5,459.82 is: 8,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.97 : 20,038.38 = 5,459.82 : x
  2. Step 2: Convert to fraction form
    13,358.97/20,038.38 = 5,459.82/x
  3. Step 3: Cross multiply
    13,358.97x = 20,038.38 × 5,459.82
  4. Step 4: Simplify right side
    13,358.97x = 109,405,947.89
  5. Step 5: Solve for x
    x = 109,405,947.89/13,358.97
  6. Step 6: Final answer
    x = 8,189.70

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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.