Home / 13,901.20-20,853.60-6,884.80

Finding the Fourth Proportional to 13,901.20, 20,853.60 and 6,884.80

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Solution

The fourth proportional to 13,901.20, 20,853.60 and 6,884.80 is: 10,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.20 : 20,853.60 = 6,884.80 : x
  2. Step 2: Convert to fraction form
    13,901.20/20,853.60 = 6,884.80/x
  3. Step 3: Cross multiply
    13,901.20x = 20,853.60 × 6,884.80
  4. Step 4: Simplify right side
    13,901.20x = 143,572,865.28
  5. Step 5: Solve for x
    x = 143,572,865.28/13,901.20
  6. Step 6: Final answer
    x = 10,328.09

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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.