Home / 13,310.08-19,953.60-6,389.44

Finding the Fourth Proportional to 13,310.08, 19,953.60 and 6,389.44

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Solution

The fourth proportional to 13,310.08, 19,953.60 and 6,389.44 is: 9,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.08 : 19,953.60 = 6,389.44 : x
  2. Step 2: Convert to fraction form
    13,310.08/19,953.60 = 6,389.44/x
  3. Step 3: Cross multiply
    13,310.08x = 19,953.60 × 6,389.44
  4. Step 4: Simplify right side
    13,310.08x = 127,492,329.98
  5. Step 5: Solve for x
    x = 127,492,329.98/13,310.08
  6. Step 6: Final answer
    x = 9,578.63

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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.