Home / 17,745-26,619.66-7,212.80

Finding the Fourth Proportional to 17,745, 26,619.66 and 7,212.80

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Solution

The fourth proportional to 17,745, 26,619.66 and 7,212.80 is: 10,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745 : 26,619.66 = 7,212.80 : x
  2. Step 2: Convert to fraction form
    17,745/26,619.66 = 7,212.80/x
  3. Step 3: Cross multiply
    17,745x = 26,619.66 × 7,212.80
  4. Step 4: Simplify right side
    17,745x = 192,002,283.65
  5. Step 5: Solve for x
    x = 192,002,283.65/17,745
  6. Step 6: Final answer
    x = 10,820.08

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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.