Home / 11,340.77-15,651.52-6,624.75

Finding the Fourth Proportional to 11,340.77, 15,651.52 and 6,624.75

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Solution

The fourth proportional to 11,340.77, 15,651.52 and 6,624.75 is: 9,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.77 : 15,651.52 = 6,624.75 : x
  2. Step 2: Convert to fraction form
    11,340.77/15,651.52 = 6,624.75/x
  3. Step 3: Cross multiply
    11,340.77x = 15,651.52 × 6,624.75
  4. Step 4: Simplify right side
    11,340.77x = 103,687,407.12
  5. Step 5: Solve for x
    x = 103,687,407.12/11,340.77
  6. Step 6: Final answer
    x = 9,142.89

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Half scale
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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.