Home / 13,698.04-20,550.12-4,338.62

Finding the Fourth Proportional to 13,698.04, 20,550.12 and 4,338.62

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Solution

The fourth proportional to 13,698.04, 20,550.12 and 4,338.62 is: 6,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.04 : 20,550.12 = 4,338.62 : x
  2. Step 2: Convert to fraction form
    13,698.04/20,550.12 = 4,338.62/x
  3. Step 3: Cross multiply
    13,698.04x = 20,550.12 × 4,338.62
  4. Step 4: Simplify right side
    13,698.04x = 89,159,161.63
  5. Step 5: Solve for x
    x = 89,159,161.63/13,698.04
  6. Step 6: Final answer
    x = 6,508.90

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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.