Home / 11,243.30-15,516.45-6,464.76

Finding the Fourth Proportional to 11,243.30, 15,516.45 and 6,464.76

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Solution

The fourth proportional to 11,243.30, 15,516.45 and 6,464.76 is: 8,921.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.30 : 15,516.45 = 6,464.76 : x
  2. Step 2: Convert to fraction form
    11,243.30/15,516.45 = 6,464.76/x
  3. Step 3: Cross multiply
    11,243.30x = 15,516.45 × 6,464.76
  4. Step 4: Simplify right side
    11,243.30x = 100,310,125.30
  5. Step 5: Solve for x
    x = 100,310,125.30/11,243.30
  6. Step 6: Final answer
    x = 8,921.77

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Half scale
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Double 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.