Home / 14,372.40-21,431.67-12,624.56

Finding the Fourth Proportional to 14,372.40, 21,431.67 and 12,624.56

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Solution

The fourth proportional to 14,372.40, 21,431.67 and 12,624.56 is: 18,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,372.40 : 21,431.67 = 12,624.56 : x
  2. Step 2: Convert to fraction form
    14,372.40/21,431.67 = 12,624.56/x
  3. Step 3: Cross multiply
    14,372.40x = 21,431.67 × 12,624.56
  4. Step 4: Simplify right side
    14,372.40x = 270,565,296.66
  5. Step 5: Solve for x
    x = 270,565,296.66/14,372.40
  6. Step 6: Final answer
    x = 18,825.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.