Home / 13,087.81-19,629.78-4,322.80

Finding the Fourth Proportional to 13,087.81, 19,629.78 and 4,322.80

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Solution

The fourth proportional to 13,087.81, 19,629.78 and 4,322.80 is: 6,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.81 : 19,629.78 = 4,322.80 : x
  2. Step 2: Convert to fraction form
    13,087.81/19,629.78 = 4,322.80/x
  3. Step 3: Cross multiply
    13,087.81x = 19,629.78 × 4,322.80
  4. Step 4: Simplify right side
    13,087.81x = 84,855,612.98
  5. Step 5: Solve for x
    x = 84,855,612.98/13,087.81
  6. Step 6: Final answer
    x = 6,483.56

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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.