Home / 14,729.26-20,326.72-8,356.28

Finding the Fourth Proportional to 14,729.26, 20,326.72 and 8,356.28

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Solution

The fourth proportional to 14,729.26, 20,326.72 and 8,356.28 is: 11,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.26 : 20,326.72 = 8,356.28 : x
  2. Step 2: Convert to fraction form
    14,729.26/20,326.72 = 8,356.28/x
  3. Step 3: Cross multiply
    14,729.26x = 20,326.72 × 8,356.28
  4. Step 4: Simplify right side
    14,729.26x = 169,855,763.80
  5. Step 5: Solve for x
    x = 169,855,763.80/14,729.26
  6. Step 6: Final answer
    x = 11,531.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.