Home / 14,382.72-21,580.56-12,313.44

Finding the Fourth Proportional to 14,382.72, 21,580.56 and 12,313.44

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Solution

The fourth proportional to 14,382.72, 21,580.56 and 12,313.44 is: 18,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.72 : 21,580.56 = 12,313.44 : x
  2. Step 2: Convert to fraction form
    14,382.72/21,580.56 = 12,313.44/x
  3. Step 3: Cross multiply
    14,382.72x = 21,580.56 × 12,313.44
  4. Step 4: Simplify right side
    14,382.72x = 265,730,930.73
  5. Step 5: Solve for x
    x = 265,730,930.73/14,382.72
  6. Step 6: Final answer
    x = 18,475.71

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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.