Home / 14,879.40-20,536.32-8,909.83

Finding the Fourth Proportional to 14,879.40, 20,536.32 and 8,909.83

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Solution

The fourth proportional to 14,879.40, 20,536.32 and 8,909.83 is: 12,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.40 : 20,536.32 = 8,909.83 : x
  2. Step 2: Convert to fraction form
    14,879.40/20,536.32 = 8,909.83/x
  3. Step 3: Cross multiply
    14,879.40x = 20,536.32 × 8,909.83
  4. Step 4: Simplify right side
    14,879.40x = 182,975,120.03
  5. Step 5: Solve for x
    x = 182,975,120.03/14,879.40
  6. Step 6: Final answer
    x = 12,297.21

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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.