Home / 13,185.16-19,777.76-4,861.57

Finding the Fourth Proportional to 13,185.16, 19,777.76 and 4,861.57

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Solution

The fourth proportional to 13,185.16, 19,777.76 and 4,861.57 is: 7,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.16 : 19,777.76 = 4,861.57 : x
  2. Step 2: Convert to fraction form
    13,185.16/19,777.76 = 4,861.57/x
  3. Step 3: Cross multiply
    13,185.16x = 19,777.76 × 4,861.57
  4. Step 4: Simplify right side
    13,185.16x = 96,150,964.68
  5. Step 5: Solve for x
    x = 96,150,964.68/13,185.16
  6. Step 6: Final answer
    x = 7,292.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.