Home / 11,200.80-15,455.70-6,165.30

Finding the Fourth Proportional to 11,200.80, 15,455.70 and 6,165.30

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Solution

The fourth proportional to 11,200.80, 15,455.70 and 6,165.30 is: 8,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.80 : 15,455.70 = 6,165.30 : x
  2. Step 2: Convert to fraction form
    11,200.80/15,455.70 = 6,165.30/x
  3. Step 3: Cross multiply
    11,200.80x = 15,455.70 × 6,165.30
  4. Step 4: Simplify right side
    11,200.80x = 95,289,027.21
  5. Step 5: Solve for x
    x = 95,289,027.21/11,200.80
  6. Step 6: Final answer
    x = 8,507.34

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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.