Home / 12,295.15-16,967.13-6,989.86

Finding the Fourth Proportional to 12,295.15, 16,967.13 and 6,989.86

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Solution

The fourth proportional to 12,295.15, 16,967.13 and 6,989.86 is: 9,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.15 : 16,967.13 = 6,989.86 : x
  2. Step 2: Convert to fraction form
    12,295.15/16,967.13 = 6,989.86/x
  3. Step 3: Cross multiply
    12,295.15x = 16,967.13 × 6,989.86
  4. Step 4: Simplify right side
    12,295.15x = 118,597,863.30
  5. Step 5: Solve for x
    x = 118,597,863.30/12,295.15
  6. Step 6: Final answer
    x = 9,645.91

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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.