Home / 13,698.91-20,550.87-4,341.28

Finding the Fourth Proportional to 13,698.91, 20,550.87 and 4,341.28

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Solution

The fourth proportional to 13,698.91, 20,550.87 and 4,341.28 is: 6,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.91 : 20,550.87 = 4,341.28 : x
  2. Step 2: Convert to fraction form
    13,698.91/20,550.87 = 4,341.28/x
  3. Step 3: Cross multiply
    13,698.91x = 20,550.87 × 4,341.28
  4. Step 4: Simplify right side
    13,698.91x = 89,217,080.91
  5. Step 5: Solve for x
    x = 89,217,080.91/13,698.91
  6. Step 6: Final answer
    x = 6,512.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.