Home / 14,909.78-20,575.96-8,195.70

Finding the Fourth Proportional to 14,909.78, 20,575.96 and 8,195.70

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Solution

The fourth proportional to 14,909.78, 20,575.96 and 8,195.70 is: 11,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.78 : 20,575.96 = 8,195.70 : x
  2. Step 2: Convert to fraction form
    14,909.78/20,575.96 = 8,195.70/x
  3. Step 3: Cross multiply
    14,909.78x = 20,575.96 × 8,195.70
  4. Step 4: Simplify right side
    14,909.78x = 168,634,395.37
  5. Step 5: Solve for x
    x = 168,634,395.37/14,909.78
  6. Step 6: Final answer
    x = 11,310.32

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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.