Home / 12,754.28-19,120.02-4,961.24

Finding the Fourth Proportional to 12,754.28, 19,120.02 and 4,961.24

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Solution

The fourth proportional to 12,754.28, 19,120.02 and 4,961.24 is: 7,437.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.28 : 19,120.02 = 4,961.24 : x
  2. Step 2: Convert to fraction form
    12,754.28/19,120.02 = 4,961.24/x
  3. Step 3: Cross multiply
    12,754.28x = 19,120.02 × 4,961.24
  4. Step 4: Simplify right side
    12,754.28x = 94,859,008.02
  5. Step 5: Solve for x
    x = 94,859,008.02/12,754.28
  6. Step 6: Final answer
    x = 7,437.43

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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.