Home / 12,380.90-17,086.08-8,852.54

Finding the Fourth Proportional to 12,380.90, 17,086.08 and 8,852.54

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Solution

The fourth proportional to 12,380.90, 17,086.08 and 8,852.54 is: 12,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.90 : 17,086.08 = 8,852.54 : x
  2. Step 2: Convert to fraction form
    12,380.90/17,086.08 = 8,852.54/x
  3. Step 3: Cross multiply
    12,380.90x = 17,086.08 × 8,852.54
  4. Step 4: Simplify right side
    12,380.90x = 151,255,206.64
  5. Step 5: Solve for x
    x = 151,255,206.64/12,380.90
  6. Step 6: Final answer
    x = 12,216.82

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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.