Home / 12,285.27-18,438.39-4,894.92

Finding the Fourth Proportional to 12,285.27, 18,438.39 and 4,894.92

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Solution

The fourth proportional to 12,285.27, 18,438.39 and 4,894.92 is: 7,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.27 : 18,438.39 = 4,894.92 : x
  2. Step 2: Convert to fraction form
    12,285.27/18,438.39 = 4,894.92/x
  3. Step 3: Cross multiply
    12,285.27x = 18,438.39 × 4,894.92
  4. Step 4: Simplify right side
    12,285.27x = 90,254,443.98
  5. Step 5: Solve for x
    x = 90,254,443.98/12,285.27
  6. Step 6: Final answer
    x = 7,346.56

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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.