Home / 13,208.80-19,808.61-5,308.97

Finding the Fourth Proportional to 13,208.80, 19,808.61 and 5,308.97

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Solution

The fourth proportional to 13,208.80, 19,808.61 and 5,308.97 is: 7,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.80 : 19,808.61 = 5,308.97 : x
  2. Step 2: Convert to fraction form
    13,208.80/19,808.61 = 5,308.97/x
  3. Step 3: Cross multiply
    13,208.80x = 19,808.61 × 5,308.97
  4. Step 4: Simplify right side
    13,208.80x = 105,163,316.23
  5. Step 5: Solve for x
    x = 105,163,316.23/13,208.80
  6. Step 6: Final answer
    x = 7,961.61

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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.