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Finding the Fourth Proportional to 34,485.75, 51,728.63 and 9,861.75

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Solution

The fourth proportional to 34,485.75, 51,728.63 and 9,861.75 is: 14,792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,485.75 : 51,728.63 = 9,861.75 : x
  2. Step 2: Convert to fraction form
    34,485.75/51,728.63 = 9,861.75/x
  3. Step 3: Cross multiply
    34,485.75x = 51,728.63 × 9,861.75
  4. Step 4: Simplify right side
    34,485.75x = 510,134,767.59
  5. Step 5: Solve for x
    x = 510,134,767.59/34,485.75
  6. Step 6: Final answer
    x = 14,792.63

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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.