Home / 13,205.25-19,814.40-5,808.78

Finding the Fourth Proportional to 13,205.25, 19,814.40 and 5,808.78

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Solution

The fourth proportional to 13,205.25, 19,814.40 and 5,808.78 is: 8,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.25 : 19,814.40 = 5,808.78 : x
  2. Step 2: Convert to fraction form
    13,205.25/19,814.40 = 5,808.78/x
  3. Step 3: Cross multiply
    13,205.25x = 19,814.40 × 5,808.78
  4. Step 4: Simplify right side
    13,205.25x = 115,097,490.43
  5. Step 5: Solve for x
    x = 115,097,490.43/13,205.25
  6. Step 6: Final answer
    x = 8,716.04

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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.