Home / 12,861.02-17,744.46-8,144.12

Finding the Fourth Proportional to 12,861.02, 17,744.46 and 8,144.12

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Solution

The fourth proportional to 12,861.02, 17,744.46 and 8,144.12 is: 11,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.02 : 17,744.46 = 8,144.12 : x
  2. Step 2: Convert to fraction form
    12,861.02/17,744.46 = 8,144.12/x
  3. Step 3: Cross multiply
    12,861.02x = 17,744.46 × 8,144.12
  4. Step 4: Simplify right side
    12,861.02x = 144,513,011.58
  5. Step 5: Solve for x
    x = 144,513,011.58/12,861.02
  6. Step 6: Final answer
    x = 11,236.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.