Home / 12,485.12-17,236.36-8,512.04

Finding the Fourth Proportional to 12,485.12, 17,236.36 and 8,512.04

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Solution

The fourth proportional to 12,485.12, 17,236.36 and 8,512.04 is: 11,751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.12 : 17,236.36 = 8,512.04 : x
  2. Step 2: Convert to fraction form
    12,485.12/17,236.36 = 8,512.04/x
  3. Step 3: Cross multiply
    12,485.12x = 17,236.36 × 8,512.04
  4. Step 4: Simplify right side
    12,485.12x = 146,716,585.77
  5. Step 5: Solve for x
    x = 146,716,585.77/12,485.12
  6. Step 6: Final answer
    x = 11,751.32

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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.