Home / 12,003.28-16,564.60-6,697.80

Finding the Fourth Proportional to 12,003.28, 16,564.60 and 6,697.80

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Solution

The fourth proportional to 12,003.28, 16,564.60 and 6,697.80 is: 9,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.28 : 16,564.60 = 6,697.80 : x
  2. Step 2: Convert to fraction form
    12,003.28/16,564.60 = 6,697.80/x
  3. Step 3: Cross multiply
    12,003.28x = 16,564.60 × 6,697.80
  4. Step 4: Simplify right side
    12,003.28x = 110,946,377.88
  5. Step 5: Solve for x
    x = 110,946,377.88/12,003.28
  6. Step 6: Final answer
    x = 9,243.01

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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.