Home / 17,979.40-26,969.36-6,886.65

Finding the Fourth Proportional to 17,979.40, 26,969.36 and 6,886.65

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Solution

The fourth proportional to 17,979.40, 26,969.36 and 6,886.65 is: 10,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.40 : 26,969.36 = 6,886.65 : x
  2. Step 2: Convert to fraction form
    17,979.40/26,969.36 = 6,886.65/x
  3. Step 3: Cross multiply
    17,979.40x = 26,969.36 × 6,886.65
  4. Step 4: Simplify right side
    17,979.40x = 185,728,609.75
  5. Step 5: Solve for x
    x = 185,728,609.75/17,979.40
  6. Step 6: Final answer
    x = 10,330.08

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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.