Home / 14,123.62-21,188.85-4,262.30

Finding the Fourth Proportional to 14,123.62, 21,188.85 and 4,262.30

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Solution

The fourth proportional to 14,123.62, 21,188.85 and 4,262.30 is: 6,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.62 : 21,188.85 = 4,262.30 : x
  2. Step 2: Convert to fraction form
    14,123.62/21,188.85 = 4,262.30/x
  3. Step 3: Cross multiply
    14,123.62x = 21,188.85 × 4,262.30
  4. Step 4: Simplify right side
    14,123.62x = 90,313,129.41
  5. Step 5: Solve for x
    x = 90,313,129.41/14,123.62
  6. Step 6: Final answer
    x = 6,394.47

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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.