Home / 18,723.42-25,826.85-12,757.77

Finding the Fourth Proportional to 18,723.42, 25,826.85 and 12,757.77

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Solution

The fourth proportional to 18,723.42, 25,826.85 and 12,757.77 is: 17,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.42 : 25,826.85 = 12,757.77 : x
  2. Step 2: Convert to fraction form
    18,723.42/25,826.85 = 12,757.77/x
  3. Step 3: Cross multiply
    18,723.42x = 25,826.85 × 12,757.77
  4. Step 4: Simplify right side
    18,723.42x = 329,493,012.12
  5. Step 5: Solve for x
    x = 329,493,012.12/18,723.42
  6. Step 6: Final answer
    x = 17,597.91

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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.