Home / 14,123.24-21,185.76-4,764.20

Finding the Fourth Proportional to 14,123.24, 21,185.76 and 4,764.20

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Solution

The fourth proportional to 14,123.24, 21,185.76 and 4,764.20 is: 7,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.24 : 21,185.76 = 4,764.20 : x
  2. Step 2: Convert to fraction form
    14,123.24/21,185.76 = 4,764.20/x
  3. Step 3: Cross multiply
    14,123.24x = 21,185.76 × 4,764.20
  4. Step 4: Simplify right side
    14,123.24x = 100,933,197.79
  5. Step 5: Solve for x
    x = 100,933,197.79/14,123.24
  6. Step 6: Final answer
    x = 7,146.60

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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.