Home / 12,009.20-16,572.60-6,703.86

Finding the Fourth Proportional to 12,009.20, 16,572.60 and 6,703.86

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Solution

The fourth proportional to 12,009.20, 16,572.60 and 6,703.86 is: 9,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.20 : 16,572.60 = 6,703.86 : x
  2. Step 2: Convert to fraction form
    12,009.20/16,572.60 = 6,703.86/x
  3. Step 3: Cross multiply
    12,009.20x = 16,572.60 × 6,703.86
  4. Step 4: Simplify right side
    12,009.20x = 111,100,390.24
  5. Step 5: Solve for x
    x = 111,100,390.24/12,009.20
  6. Step 6: Final answer
    x = 9,251.27

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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.