Home / 12,276.18-16,939.89-6,969.96

Finding the Fourth Proportional to 12,276.18, 16,939.89 and 6,969.96

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Solution

The fourth proportional to 12,276.18, 16,939.89 and 6,969.96 is: 9,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.18 : 16,939.89 = 6,969.96 : x
  2. Step 2: Convert to fraction form
    12,276.18/16,939.89 = 6,969.96/x
  3. Step 3: Cross multiply
    12,276.18x = 16,939.89 × 6,969.96
  4. Step 4: Simplify right side
    12,276.18x = 118,070,355.70
  5. Step 5: Solve for x
    x = 118,070,355.70/12,276.18
  6. Step 6: Final answer
    x = 9,617.84

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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.