Home / 12,285.64-18,425.94-3,518.92

Finding the Fourth Proportional to 12,285.64, 18,425.94 and 3,518.92

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Solution

The fourth proportional to 12,285.64, 18,425.94 and 3,518.92 is: 5,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.64 : 18,425.94 = 3,518.92 : x
  2. Step 2: Convert to fraction form
    12,285.64/18,425.94 = 3,518.92/x
  3. Step 3: Cross multiply
    12,285.64x = 18,425.94 × 3,518.92
  4. Step 4: Simplify right side
    12,285.64x = 64,839,408.78
  5. Step 5: Solve for x
    x = 64,839,408.78/12,285.64
  6. Step 6: Final answer
    x = 5,277.66

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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.