Home / 19,764.53-29,648.87-6,438.56

Finding the Fourth Proportional to 19,764.53, 29,648.87 and 6,438.56

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Solution

The fourth proportional to 19,764.53, 29,648.87 and 6,438.56 is: 9,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.53 : 29,648.87 = 6,438.56 : x
  2. Step 2: Convert to fraction form
    19,764.53/29,648.87 = 6,438.56/x
  3. Step 3: Cross multiply
    19,764.53x = 29,648.87 × 6,438.56
  4. Step 4: Simplify right side
    19,764.53x = 190,896,149.46
  5. Step 5: Solve for x
    x = 190,896,149.46/19,764.53
  6. Step 6: Final answer
    x = 9,658.52

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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.