Home / 12,291.54-18,434.88-4,497.72

Finding the Fourth Proportional to 12,291.54, 18,434.88 and 4,497.72

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Solution

The fourth proportional to 12,291.54, 18,434.88 and 4,497.72 is: 6,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.54 : 18,434.88 = 4,497.72 : x
  2. Step 2: Convert to fraction form
    12,291.54/18,434.88 = 4,497.72/x
  3. Step 3: Cross multiply
    12,291.54x = 18,434.88 × 4,497.72
  4. Step 4: Simplify right side
    12,291.54x = 82,914,928.47
  5. Step 5: Solve for x
    x = 82,914,928.47/12,291.54
  6. Step 6: Final answer
    x = 6,745.69

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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.