Home / 9,273.49-12,790.44-6,440.87

Finding the Fourth Proportional to 9,273.49, 12,790.44 and 6,440.87

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Solution

The fourth proportional to 9,273.49, 12,790.44 and 6,440.87 is: 8,883.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,273.49 : 12,790.44 = 6,440.87 : x
  2. Step 2: Convert to fraction form
    9,273.49/12,790.44 = 6,440.87/x
  3. Step 3: Cross multiply
    9,273.49x = 12,790.44 × 6,440.87
  4. Step 4: Simplify right side
    9,273.49x = 82,381,561.28
  5. Step 5: Solve for x
    x = 82,381,561.28/9,273.49
  6. Step 6: Final answer
    x = 8,883.56

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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.