Home / 12,138.28-16,750.84-6,833.14

Finding the Fourth Proportional to 12,138.28, 16,750.84 and 6,833.14

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Solution

The fourth proportional to 12,138.28, 16,750.84 and 6,833.14 is: 9,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138.28 : 16,750.84 = 6,833.14 : x
  2. Step 2: Convert to fraction form
    12,138.28/16,750.84 = 6,833.14/x
  3. Step 3: Cross multiply
    12,138.28x = 16,750.84 × 6,833.14
  4. Step 4: Simplify right side
    12,138.28x = 114,460,834.84
  5. Step 5: Solve for x
    x = 114,460,834.84/12,138.28
  6. Step 6: Final answer
    x = 9,429.74

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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.