Home / 11,861.29-16,366.84-7,080.13

Finding the Fourth Proportional to 11,861.29, 16,366.84 and 7,080.13

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Solution

The fourth proportional to 11,861.29, 16,366.84 and 7,080.13 is: 9,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.29 : 16,366.84 = 7,080.13 : x
  2. Step 2: Convert to fraction form
    11,861.29/16,366.84 = 7,080.13/x
  3. Step 3: Cross multiply
    11,861.29x = 16,366.84 × 7,080.13
  4. Step 4: Simplify right side
    11,861.29x = 115,879,354.89
  5. Step 5: Solve for x
    x = 115,879,354.89/11,861.29
  6. Step 6: Final answer
    x = 9,769.54

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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.