Home / 15,418.68-23,131.80-5,558.64

Finding the Fourth Proportional to 15,418.68, 23,131.80 and 5,558.64

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Solution

The fourth proportional to 15,418.68, 23,131.80 and 5,558.64 is: 8,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.68 : 23,131.80 = 5,558.64 : x
  2. Step 2: Convert to fraction form
    15,418.68/23,131.80 = 5,558.64/x
  3. Step 3: Cross multiply
    15,418.68x = 23,131.80 × 5,558.64
  4. Step 4: Simplify right side
    15,418.68x = 128,581,348.75
  5. Step 5: Solve for x
    x = 128,581,348.75/15,418.68
  6. Step 6: Final answer
    x = 8,339.32

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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.