Home / 12,032.12-18,057.30-5,111.48

Finding the Fourth Proportional to 12,032.12, 18,057.30 and 5,111.48

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Solution

The fourth proportional to 12,032.12, 18,057.30 and 5,111.48 is: 7,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,032.12 : 18,057.30 = 5,111.48 : x
  2. Step 2: Convert to fraction form
    12,032.12/18,057.30 = 5,111.48/x
  3. Step 3: Cross multiply
    12,032.12x = 18,057.30 × 5,111.48
  4. Step 4: Simplify right side
    12,032.12x = 92,299,527.80
  5. Step 5: Solve for x
    x = 92,299,527.80/12,032.12
  6. Step 6: Final answer
    x = 7,671.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.