Home / 10,918.26-16,378.45-4,343.00

Finding the Fourth Proportional to 10,918.26, 16,378.45 and 4,343.00

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Solution

The fourth proportional to 10,918.26, 16,378.45 and 4,343.00 is: 6,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.26 : 16,378.45 = 4,343.00 : x
  2. Step 2: Convert to fraction form
    10,918.26/16,378.45 = 4,343.00/x
  3. Step 3: Cross multiply
    10,918.26x = 16,378.45 × 4,343.00
  4. Step 4: Simplify right side
    10,918.26x = 71,131,515.60
  5. Step 5: Solve for x
    x = 71,131,515.60/10,918.26
  6. Step 6: Final answer
    x = 6,514.91

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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.