Home / 10,853.30-14,961.22-8,491.34

Finding the Fourth Proportional to 10,853.30, 14,961.22 and 8,491.34

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Solution

The fourth proportional to 10,853.30, 14,961.22 and 8,491.34 is: 11,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.30 : 14,961.22 = 8,491.34 : x
  2. Step 2: Convert to fraction form
    10,853.30/14,961.22 = 8,491.34/x
  3. Step 3: Cross multiply
    10,853.30x = 14,961.22 × 8,491.34
  4. Step 4: Simplify right side
    10,853.30x = 127,040,709.80
  5. Step 5: Solve for x
    x = 127,040,709.80/10,853.30
  6. Step 6: Final answer
    x = 11,705.27

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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.