Home / 12,960.24-17,861.70-9,751.76

Finding the Fourth Proportional to 12,960.24, 17,861.70 and 9,751.76

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Solution

The fourth proportional to 12,960.24, 17,861.70 and 9,751.76 is: 13,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.24 : 17,861.70 = 9,751.76 : x
  2. Step 2: Convert to fraction form
    12,960.24/17,861.70 = 9,751.76/x
  3. Step 3: Cross multiply
    12,960.24x = 17,861.70 × 9,751.76
  4. Step 4: Simplify right side
    12,960.24x = 174,182,922.28
  5. Step 5: Solve for x
    x = 174,182,922.28/12,960.24
  6. Step 6: Final answer
    x = 13,439.79

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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.