Home / 13,628.16-20,437.92-4,392

Finding the Fourth Proportional to 13,628.16, 20,437.92 and 4,392

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Solution

The fourth proportional to 13,628.16, 20,437.92 and 4,392 is: 6,586.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.16 : 20,437.92 = 4,392 : x
  2. Step 2: Convert to fraction form
    13,628.16/20,437.92 = 4,392/x
  3. Step 3: Cross multiply
    13,628.16x = 20,437.92 × 4,392
  4. Step 4: Simplify right side
    13,628.16x = 89,763,344.64
  5. Step 5: Solve for x
    x = 89,763,344.64/13,628.16
  6. Step 6: Final answer
    x = 6,586.61

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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.