Home / 10,722.24-16,129.44-9,201.60

Finding the Fourth Proportional to 10,722.24, 16,129.44 and 9,201.60

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Solution

The fourth proportional to 10,722.24, 16,129.44 and 9,201.60 is: 13,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.24 : 16,129.44 = 9,201.60 : x
  2. Step 2: Convert to fraction form
    10,722.24/16,129.44 = 9,201.60/x
  3. Step 3: Cross multiply
    10,722.24x = 16,129.44 × 9,201.60
  4. Step 4: Simplify right side
    10,722.24x = 148,416,655.10
  5. Step 5: Solve for x
    x = 148,416,655.10/10,722.24
  6. Step 6: Final answer
    x = 13,841.94

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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.