Home / 12,003.85-16,564.80-6,698.62

Finding the Fourth Proportional to 12,003.85, 16,564.80 and 6,698.62

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Solution

The fourth proportional to 12,003.85, 16,564.80 and 6,698.62 is: 9,243.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.85 : 16,564.80 = 6,698.62 : x
  2. Step 2: Convert to fraction form
    12,003.85/16,564.80 = 6,698.62/x
  3. Step 3: Cross multiply
    12,003.85x = 16,564.80 × 6,698.62
  4. Step 4: Simplify right side
    12,003.85x = 110,961,300.58
  5. Step 5: Solve for x
    x = 110,961,300.58/12,003.85
  6. Step 6: Final answer
    x = 9,243.81

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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.