Home / 12,558.30-17,331.84-8,025.16

Finding the Fourth Proportional to 12,558.30, 17,331.84 and 8,025.16

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Solution

The fourth proportional to 12,558.30, 17,331.84 and 8,025.16 is: 11,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.30 : 17,331.84 = 8,025.16 : x
  2. Step 2: Convert to fraction form
    12,558.30/17,331.84 = 8,025.16/x
  3. Step 3: Cross multiply
    12,558.30x = 17,331.84 × 8,025.16
  4. Step 4: Simplify right side
    12,558.30x = 139,090,789.09
  5. Step 5: Solve for x
    x = 139,090,789.09/12,558.30
  6. Step 6: Final answer
    x = 11,075.61

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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.