Home / 17,315.25-25,979.36-8,990.07

Finding the Fourth Proportional to 17,315.25, 25,979.36 and 8,990.07

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Solution

The fourth proportional to 17,315.25, 25,979.36 and 8,990.07 is: 13,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,315.25 : 25,979.36 = 8,990.07 : x
  2. Step 2: Convert to fraction form
    17,315.25/25,979.36 = 8,990.07/x
  3. Step 3: Cross multiply
    17,315.25x = 25,979.36 × 8,990.07
  4. Step 4: Simplify right side
    17,315.25x = 233,556,220.00
  5. Step 5: Solve for x
    x = 233,556,220.00/17,315.25
  6. Step 6: Final answer
    x = 13,488.47

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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.