Home / 13,286.36-19,915.62-4,962.80

Finding the Fourth Proportional to 13,286.36, 19,915.62 and 4,962.80

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Solution

The fourth proportional to 13,286.36, 19,915.62 and 4,962.80 is: 7,439.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.36 : 19,915.62 = 4,962.80 : x
  2. Step 2: Convert to fraction form
    13,286.36/19,915.62 = 4,962.80/x
  3. Step 3: Cross multiply
    13,286.36x = 19,915.62 × 4,962.80
  4. Step 4: Simplify right side
    13,286.36x = 98,837,238.94
  5. Step 5: Solve for x
    x = 98,837,238.94/13,286.36
  6. Step 6: Final answer
    x = 7,439.00

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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.