Home / 12,195.24-16,829.78-6,890.86

Finding the Fourth Proportional to 12,195.24, 16,829.78 and 6,890.86

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Solution

The fourth proportional to 12,195.24, 16,829.78 and 6,890.86 is: 9,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.24 : 16,829.78 = 6,890.86 : x
  2. Step 2: Convert to fraction form
    12,195.24/16,829.78 = 6,890.86/x
  3. Step 3: Cross multiply
    12,195.24x = 16,829.78 × 6,890.86
  4. Step 4: Simplify right side
    12,195.24x = 115,971,657.81
  5. Step 5: Solve for x
    x = 115,971,657.81/12,195.24
  6. Step 6: Final answer
    x = 9,509.58

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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.