Home / 11,905.61-16,429.55-6,600.30

Finding the Fourth Proportional to 11,905.61, 16,429.55 and 6,600.30

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Solution

The fourth proportional to 11,905.61, 16,429.55 and 6,600.30 is: 9,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.61 : 16,429.55 = 6,600.30 : x
  2. Step 2: Convert to fraction form
    11,905.61/16,429.55 = 6,600.30/x
  3. Step 3: Cross multiply
    11,905.61x = 16,429.55 × 6,600.30
  4. Step 4: Simplify right side
    11,905.61x = 108,439,925.86
  5. Step 5: Solve for x
    x = 108,439,925.86/11,905.61
  6. Step 6: Final answer
    x = 9,108.31

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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.