Home / 9,840.28-13,571.23-8,314.68

Finding the Fourth Proportional to 9,840.28, 13,571.23 and 8,314.68

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Solution

The fourth proportional to 9,840.28, 13,571.23 and 8,314.68 is: 11,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.28 : 13,571.23 = 8,314.68 : x
  2. Step 2: Convert to fraction form
    9,840.28/13,571.23 = 8,314.68/x
  3. Step 3: Cross multiply
    9,840.28x = 13,571.23 × 8,314.68
  4. Step 4: Simplify right side
    9,840.28x = 112,840,499.87
  5. Step 5: Solve for x
    x = 112,840,499.87/9,840.28
  6. Step 6: Final answer
    x = 11,467.20

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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.