Home / 15,112.04-22,682.16-7,721.80

Finding the Fourth Proportional to 15,112.04, 22,682.16 and 7,721.80

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Solution

The fourth proportional to 15,112.04, 22,682.16 and 7,721.80 is: 11,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.04 : 22,682.16 = 7,721.80 : x
  2. Step 2: Convert to fraction form
    15,112.04/22,682.16 = 7,721.80/x
  3. Step 3: Cross multiply
    15,112.04x = 22,682.16 × 7,721.80
  4. Step 4: Simplify right side
    15,112.04x = 175,147,046.38
  5. Step 5: Solve for x
    x = 175,147,046.38/15,112.04
  6. Step 6: Final answer
    x = 11,589.90

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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.