Home / 12,986.07-19,482.38-3,626.08

Finding the Fourth Proportional to 12,986.07, 19,482.38 and 3,626.08

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Solution

The fourth proportional to 12,986.07, 19,482.38 and 3,626.08 is: 5,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986.07 : 19,482.38 = 3,626.08 : x
  2. Step 2: Convert to fraction form
    12,986.07/19,482.38 = 3,626.08/x
  3. Step 3: Cross multiply
    12,986.07x = 19,482.38 × 3,626.08
  4. Step 4: Simplify right side
    12,986.07x = 70,644,668.47
  5. Step 5: Solve for x
    x = 70,644,668.47/12,986.07
  6. Step 6: Final answer
    x = 5,440.03

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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.