Home / 13,128.02-19,682.30-7,932.68

Finding the Fourth Proportional to 13,128.02, 19,682.30 and 7,932.68

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Solution

The fourth proportional to 13,128.02, 19,682.30 and 7,932.68 is: 11,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.02 : 19,682.30 = 7,932.68 : x
  2. Step 2: Convert to fraction form
    13,128.02/19,682.30 = 7,932.68/x
  3. Step 3: Cross multiply
    13,128.02x = 19,682.30 × 7,932.68
  4. Step 4: Simplify right side
    13,128.02x = 156,133,387.56
  5. Step 5: Solve for x
    x = 156,133,387.56/13,128.02
  6. Step 6: Final answer
    x = 11,893.14

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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.