Home / 15,579.81-23,369.73-12,343.05

Finding the Fourth Proportional to 15,579.81, 23,369.73 and 12,343.05

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Solution

The fourth proportional to 15,579.81, 23,369.73 and 12,343.05 is: 18,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.81 : 23,369.73 = 12,343.05 : x
  2. Step 2: Convert to fraction form
    15,579.81/23,369.73 = 12,343.05/x
  3. Step 3: Cross multiply
    15,579.81x = 23,369.73 × 12,343.05
  4. Step 4: Simplify right side
    15,579.81x = 288,453,745.88
  5. Step 5: Solve for x
    x = 288,453,745.88/15,579.81
  6. Step 6: Final answer
    x = 18,514.59

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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.