Home / 12,140.05-16,753.58-6,835.06

Finding the Fourth Proportional to 12,140.05, 16,753.58 and 6,835.06

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Solution

The fourth proportional to 12,140.05, 16,753.58 and 6,835.06 is: 9,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.05 : 16,753.58 = 6,835.06 : x
  2. Step 2: Convert to fraction form
    12,140.05/16,753.58 = 6,835.06/x
  3. Step 3: Cross multiply
    12,140.05x = 16,753.58 × 6,835.06
  4. Step 4: Simplify right side
    12,140.05x = 114,511,640.75
  5. Step 5: Solve for x
    x = 114,511,640.75/12,140.05
  6. Step 6: Final answer
    x = 9,432.55

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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.