Home / 13,829.16-19,085.88-7,861.73

Finding the Fourth Proportional to 13,829.16, 19,085.88 and 7,861.73

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Solution

The fourth proportional to 13,829.16, 19,085.88 and 7,861.73 is: 10,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.16 : 19,085.88 = 7,861.73 : x
  2. Step 2: Convert to fraction form
    13,829.16/19,085.88 = 7,861.73/x
  3. Step 3: Cross multiply
    13,829.16x = 19,085.88 × 7,861.73
  4. Step 4: Simplify right side
    13,829.16x = 150,047,939.94
  5. Step 5: Solve for x
    x = 150,047,939.94/13,829.16
  6. Step 6: Final answer
    x = 10,850.11

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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.