Home / 14,891.18-20,550.26-8,430.32

Finding the Fourth Proportional to 14,891.18, 20,550.26 and 8,430.32

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Solution

The fourth proportional to 14,891.18, 20,550.26 and 8,430.32 is: 11,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891.18 : 20,550.26 = 8,430.32 : x
  2. Step 2: Convert to fraction form
    14,891.18/20,550.26 = 8,430.32/x
  3. Step 3: Cross multiply
    14,891.18x = 20,550.26 × 8,430.32
  4. Step 4: Simplify right side
    14,891.18x = 173,245,267.88
  5. Step 5: Solve for x
    x = 173,245,267.88/14,891.18
  6. Step 6: Final answer
    x = 11,634.09

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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.