Home / 12,246.76-18,378.34-4,455.58

Finding the Fourth Proportional to 12,246.76, 18,378.34 and 4,455.58

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Solution

The fourth proportional to 12,246.76, 18,378.34 and 4,455.58 is: 6,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.76 : 18,378.34 = 4,455.58 : x
  2. Step 2: Convert to fraction form
    12,246.76/18,378.34 = 4,455.58/x
  3. Step 3: Cross multiply
    12,246.76x = 18,378.34 × 4,455.58
  4. Step 4: Simplify right side
    12,246.76x = 81,886,072.59
  5. Step 5: Solve for x
    x = 81,886,072.59/12,246.76
  6. Step 6: Final answer
    x = 6,686.34

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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.