Home / 11,285.60-16,909.36-8,650.32

Finding the Fourth Proportional to 11,285.60, 16,909.36 and 8,650.32

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Solution

The fourth proportional to 11,285.60, 16,909.36 and 8,650.32 is: 12,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.60 : 16,909.36 = 8,650.32 : x
  2. Step 2: Convert to fraction form
    11,285.60/16,909.36 = 8,650.32/x
  3. Step 3: Cross multiply
    11,285.60x = 16,909.36 × 8,650.32
  4. Step 4: Simplify right side
    11,285.60x = 146,271,375.00
  5. Step 5: Solve for x
    x = 146,271,375.00/11,285.60
  6. Step 6: Final answer
    x = 12,960.89

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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.