Home / 7,689.21-11,533.81-1,845.82

Finding the Fourth Proportional to 7,689.21, 11,533.81 and 1,845.82

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Solution

The fourth proportional to 7,689.21, 11,533.81 and 1,845.82 is: 2,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.21 : 11,533.81 = 1,845.82 : x
  2. Step 2: Convert to fraction form
    7,689.21/11,533.81 = 1,845.82/x
  3. Step 3: Cross multiply
    7,689.21x = 11,533.81 × 1,845.82
  4. Step 4: Simplify right side
    7,689.21x = 21,289,279.27
  5. Step 5: Solve for x
    x = 21,289,279.27/7,689.21
  6. Step 6: Final answer
    x = 2,768.72

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.