Home / 13,249.87-19,878.38-4,366.88

Finding the Fourth Proportional to 13,249.87, 19,878.38 and 4,366.88

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Solution

The fourth proportional to 13,249.87, 19,878.38 and 4,366.88 is: 6,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.87 : 19,878.38 = 4,366.88 : x
  2. Step 2: Convert to fraction form
    13,249.87/19,878.38 = 4,366.88/x
  3. Step 3: Cross multiply
    13,249.87x = 19,878.38 × 4,366.88
  4. Step 4: Simplify right side
    13,249.87x = 86,806,500.05
  5. Step 5: Solve for x
    x = 86,806,500.05/13,249.87
  6. Step 6: Final answer
    x = 6,551.50

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1.5x scale

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.