Home / 15,991.03-22,067.08-8,821.23

Finding the Fourth Proportional to 15,991.03, 22,067.08 and 8,821.23

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Solution

The fourth proportional to 15,991.03, 22,067.08 and 8,821.23 is: 12,173.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.03 : 22,067.08 = 8,821.23 : x
  2. Step 2: Convert to fraction form
    15,991.03/22,067.08 = 8,821.23/x
  3. Step 3: Cross multiply
    15,991.03x = 22,067.08 × 8,821.23
  4. Step 4: Simplify right side
    15,991.03x = 194,658,788.11
  5. Step 5: Solve for x
    x = 194,658,788.11/15,991.03
  6. Step 6: Final answer
    x = 12,173.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.