Home / 9,861.23-14,782.28-3,936.40

Finding the Fourth Proportional to 9,861.23, 14,782.28 and 3,936.40

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Solution

The fourth proportional to 9,861.23, 14,782.28 and 3,936.40 is: 5,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.23 : 14,782.28 = 3,936.40 : x
  2. Step 2: Convert to fraction form
    9,861.23/14,782.28 = 3,936.40/x
  3. Step 3: Cross multiply
    9,861.23x = 14,782.28 × 3,936.40
  4. Step 4: Simplify right side
    9,861.23x = 58,188,966.99
  5. Step 5: Solve for x
    x = 58,188,966.99/9,861.23
  6. Step 6: Final answer
    x = 5,900.78

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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.