Home / 14,891.43-20,550.60-8,430.57

Finding the Fourth Proportional to 14,891.43, 20,550.60 and 8,430.57

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Solution

The fourth proportional to 14,891.43, 20,550.60 and 8,430.57 is: 11,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891.43 : 20,550.60 = 8,430.57 : x
  2. Step 2: Convert to fraction form
    14,891.43/20,550.60 = 8,430.57/x
  3. Step 3: Cross multiply
    14,891.43x = 20,550.60 × 8,430.57
  4. Step 4: Simplify right side
    14,891.43x = 173,253,271.84
  5. Step 5: Solve for x
    x = 173,253,271.84/14,891.43
  6. Step 6: Final answer
    x = 11,634.43

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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.