Home / 12,555.32-18,825.68-4,759.88

Finding the Fourth Proportional to 12,555.32, 18,825.68 and 4,759.88

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Solution

The fourth proportional to 12,555.32, 18,825.68 and 4,759.88 is: 7,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.32 : 18,825.68 = 4,759.88 : x
  2. Step 2: Convert to fraction form
    12,555.32/18,825.68 = 4,759.88/x
  3. Step 3: Cross multiply
    12,555.32x = 18,825.68 × 4,759.88
  4. Step 4: Simplify right side
    12,555.32x = 89,607,895.49
  5. Step 5: Solve for x
    x = 89,607,895.49/12,555.32
  6. Step 6: Final answer
    x = 7,137.05

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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.