Home / 14,719.04-20,311.44-8,431.82

Finding the Fourth Proportional to 14,719.04, 20,311.44 and 8,431.82

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Solution

The fourth proportional to 14,719.04, 20,311.44 and 8,431.82 is: 11,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.04 : 20,311.44 = 8,431.82 : x
  2. Step 2: Convert to fraction form
    14,719.04/20,311.44 = 8,431.82/x
  3. Step 3: Cross multiply
    14,719.04x = 20,311.44 × 8,431.82
  4. Step 4: Simplify right side
    14,719.04x = 171,262,304.46
  5. Step 5: Solve for x
    x = 171,262,304.46/14,719.04
  6. Step 6: Final answer
    x = 11,635.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.