Home / 13,185.15-19,777.91-4,861.95

Finding the Fourth Proportional to 13,185.15, 19,777.91 and 4,861.95

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Solution

The fourth proportional to 13,185.15, 19,777.91 and 4,861.95 is: 7,292.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.15 : 19,777.91 = 4,861.95 : x
  2. Step 2: Convert to fraction form
    13,185.15/19,777.91 = 4,861.95/x
  3. Step 3: Cross multiply
    13,185.15x = 19,777.91 × 4,861.95
  4. Step 4: Simplify right side
    13,185.15x = 96,159,185.21
  5. Step 5: Solve for x
    x = 96,159,185.21/13,185.15
  6. Step 6: Final answer
    x = 7,292.99

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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.