Home / 12,276.28-16,941.18-6,687.28

Finding the Fourth Proportional to 12,276.28, 16,941.18 and 6,687.28

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Solution

The fourth proportional to 12,276.28, 16,941.18 and 6,687.28 is: 9,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.28 : 16,941.18 = 6,687.28 : x
  2. Step 2: Convert to fraction form
    12,276.28/16,941.18 = 6,687.28/x
  3. Step 3: Cross multiply
    12,276.28x = 16,941.18 × 6,687.28
  4. Step 4: Simplify right side
    12,276.28x = 113,290,414.19
  5. Step 5: Solve for x
    x = 113,290,414.19/12,276.28
  6. Step 6: Final answer
    x = 9,228.40

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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.