Home / 15,125.22-20,873.51-8,410.75

Finding the Fourth Proportional to 15,125.22, 20,873.51 and 8,410.75

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Solution

The fourth proportional to 15,125.22, 20,873.51 and 8,410.75 is: 11,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.22 : 20,873.51 = 8,410.75 : x
  2. Step 2: Convert to fraction form
    15,125.22/20,873.51 = 8,410.75/x
  3. Step 3: Cross multiply
    15,125.22x = 20,873.51 × 8,410.75
  4. Step 4: Simplify right side
    15,125.22x = 175,561,874.23
  5. Step 5: Solve for x
    x = 175,561,874.23/15,125.22
  6. Step 6: Final answer
    x = 11,607.23

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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.