Home / 12,687.44-19,024.76-5,758.80

Finding the Fourth Proportional to 12,687.44, 19,024.76 and 5,758.80

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Solution

The fourth proportional to 12,687.44, 19,024.76 and 5,758.80 is: 8,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.44 : 19,024.76 = 5,758.80 : x
  2. Step 2: Convert to fraction form
    12,687.44/19,024.76 = 5,758.80/x
  3. Step 3: Cross multiply
    12,687.44x = 19,024.76 × 5,758.80
  4. Step 4: Simplify right side
    12,687.44x = 109,559,787.89
  5. Step 5: Solve for x
    x = 109,559,787.89/12,687.44
  6. Step 6: Final answer
    x = 8,635.30

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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.