Home / 10,186.85-15,211.31-8,083.24

Finding the Fourth Proportional to 10,186.85, 15,211.31 and 8,083.24

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Solution

The fourth proportional to 10,186.85, 15,211.31 and 8,083.24 is: 12,070.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.85 : 15,211.31 = 8,083.24 : x
  2. Step 2: Convert to fraction form
    10,186.85/15,211.31 = 8,083.24/x
  3. Step 3: Cross multiply
    10,186.85x = 15,211.31 × 8,083.24
  4. Step 4: Simplify right side
    10,186.85x = 122,956,591.00
  5. Step 5: Solve for x
    x = 122,956,591.00/10,186.85
  6. Step 6: Final answer
    x = 12,070.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.