Home / 13,579.64-20,363-5,263.54

Finding the Fourth Proportional to 13,579.64, 20,363 and 5,263.54

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Solution

The fourth proportional to 13,579.64, 20,363 and 5,263.54 is: 7,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.64 : 20,363 = 5,263.54 : x
  2. Step 2: Convert to fraction form
    13,579.64/20,363 = 5,263.54/x
  3. Step 3: Cross multiply
    13,579.64x = 20,363 × 5,263.54
  4. Step 4: Simplify right side
    13,579.64x = 107,181,465.02
  5. Step 5: Solve for x
    x = 107,181,465.02/13,579.64
  6. Step 6: Final answer
    x = 7,892.81

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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.