Home / 9,371.72-12,943.60-6,382.36

Finding the Fourth Proportional to 9,371.72, 12,943.60 and 6,382.36

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Solution

The fourth proportional to 9,371.72, 12,943.60 and 6,382.36 is: 8,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.72 : 12,943.60 = 6,382.36 : x
  2. Step 2: Convert to fraction form
    9,371.72/12,943.60 = 6,382.36/x
  3. Step 3: Cross multiply
    9,371.72x = 12,943.60 × 6,382.36
  4. Step 4: Simplify right side
    9,371.72x = 82,610,714.90
  5. Step 5: Solve for x
    x = 82,610,714.90/9,371.72
  6. Step 6: Final answer
    x = 8,814.89

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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.