Home / 12,360.24-18,540-4,962.72

Finding the Fourth Proportional to 12,360.24, 18,540 and 4,962.72

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Solution

The fourth proportional to 12,360.24, 18,540 and 4,962.72 is: 7,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.24 : 18,540 = 4,962.72 : x
  2. Step 2: Convert to fraction form
    12,360.24/18,540 = 4,962.72/x
  3. Step 3: Cross multiply
    12,360.24x = 18,540 × 4,962.72
  4. Step 4: Simplify right side
    12,360.24x = 92,008,828.80
  5. Step 5: Solve for x
    x = 92,008,828.80/12,360.24
  6. Step 6: Final answer
    x = 7,443.94

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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.