Home / 14,251.40-21,379.44-4,390.68

Finding the Fourth Proportional to 14,251.40, 21,379.44 and 4,390.68

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Solution

The fourth proportional to 14,251.40, 21,379.44 and 4,390.68 is: 6,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.40 : 21,379.44 = 4,390.68 : x
  2. Step 2: Convert to fraction form
    14,251.40/21,379.44 = 4,390.68/x
  3. Step 3: Cross multiply
    14,251.40x = 21,379.44 × 4,390.68
  4. Step 4: Simplify right side
    14,251.40x = 93,870,279.62
  5. Step 5: Solve for x
    x = 93,870,279.62/14,251.40
  6. Step 6: Final answer
    x = 6,586.74

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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.