Home / 13,186.28-19,776.15-4,861.77

Finding the Fourth Proportional to 13,186.28, 19,776.15 and 4,861.77

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Solution

The fourth proportional to 13,186.28, 19,776.15 and 4,861.77 is: 7,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.28 : 19,776.15 = 4,861.77 : x
  2. Step 2: Convert to fraction form
    13,186.28/19,776.15 = 4,861.77/x
  3. Step 3: Cross multiply
    13,186.28x = 19,776.15 × 4,861.77
  4. Step 4: Simplify right side
    13,186.28x = 96,147,092.79
  5. Step 5: Solve for x
    x = 96,147,092.79/13,186.28
  6. Step 6: Final answer
    x = 7,291.45

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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.