Home / 12,653.08-18,981.96-6,331.28

Finding the Fourth Proportional to 12,653.08, 18,981.96 and 6,331.28

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Solution

The fourth proportional to 12,653.08, 18,981.96 and 6,331.28 is: 9,498.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.08 : 18,981.96 = 6,331.28 : x
  2. Step 2: Convert to fraction form
    12,653.08/18,981.96 = 6,331.28/x
  3. Step 3: Cross multiply
    12,653.08x = 18,981.96 × 6,331.28
  4. Step 4: Simplify right side
    12,653.08x = 120,180,120.78
  5. Step 5: Solve for x
    x = 120,180,120.78/12,653.08
  6. Step 6: Final answer
    x = 9,498.09

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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.