Home / 12,485.85-18,725.27-3,477.92

Finding the Fourth Proportional to 12,485.85, 18,725.27 and 3,477.92

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Solution

The fourth proportional to 12,485.85, 18,725.27 and 3,477.92 is: 5,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.85 : 18,725.27 = 3,477.92 : x
  2. Step 2: Convert to fraction form
    12,485.85/18,725.27 = 3,477.92/x
  3. Step 3: Cross multiply
    12,485.85x = 18,725.27 × 3,477.92
  4. Step 4: Simplify right side
    12,485.85x = 65,124,935.95
  5. Step 5: Solve for x
    x = 65,124,935.95/12,485.85
  6. Step 6: Final answer
    x = 5,215.90

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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.