Home / 13,488.72-20,232.36-4,254

Finding the Fourth Proportional to 13,488.72, 20,232.36 and 4,254

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Solution

The fourth proportional to 13,488.72, 20,232.36 and 4,254 is: 6,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.72 : 20,232.36 = 4,254 : x
  2. Step 2: Convert to fraction form
    13,488.72/20,232.36 = 4,254/x
  3. Step 3: Cross multiply
    13,488.72x = 20,232.36 × 4,254
  4. Step 4: Simplify right side
    13,488.72x = 86,068,459.44
  5. Step 5: Solve for x
    x = 86,068,459.44/13,488.72
  6. Step 6: Final answer
    x = 6,380.77

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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.