Home / 15,174.24-20,940.24-8,887.20

Finding the Fourth Proportional to 15,174.24, 20,940.24 and 8,887.20

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Solution

The fourth proportional to 15,174.24, 20,940.24 and 8,887.20 is: 12,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.24 : 20,940.24 = 8,887.20 : x
  2. Step 2: Convert to fraction form
    15,174.24/20,940.24 = 8,887.20/x
  3. Step 3: Cross multiply
    15,174.24x = 20,940.24 × 8,887.20
  4. Step 4: Simplify right side
    15,174.24x = 186,100,100.93
  5. Step 5: Solve for x
    x = 186,100,100.93/15,174.24
  6. Step 6: Final answer
    x = 12,264.21

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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.