Home / 13,288.80-19,936.88-5,899.20

Finding the Fourth Proportional to 13,288.80, 19,936.88 and 5,899.20

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Solution

The fourth proportional to 13,288.80, 19,936.88 and 5,899.20 is: 8,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.80 : 19,936.88 = 5,899.20 : x
  2. Step 2: Convert to fraction form
    13,288.80/19,936.88 = 5,899.20/x
  3. Step 3: Cross multiply
    13,288.80x = 19,936.88 × 5,899.20
  4. Step 4: Simplify right side
    13,288.80x = 117,611,642.50
  5. Step 5: Solve for x
    x = 117,611,642.50/13,288.80
  6. Step 6: Final answer
    x = 8,850.43

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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.