Home / 14,354.44-21,540.78-7,428.94

Finding the Fourth Proportional to 14,354.44, 21,540.78 and 7,428.94

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Solution

The fourth proportional to 14,354.44, 21,540.78 and 7,428.94 is: 11,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.44 : 21,540.78 = 7,428.94 : x
  2. Step 2: Convert to fraction form
    14,354.44/21,540.78 = 7,428.94/x
  3. Step 3: Cross multiply
    14,354.44x = 21,540.78 × 7,428.94
  4. Step 4: Simplify right side
    14,354.44x = 160,025,108.32
  5. Step 5: Solve for x
    x = 160,025,108.32/14,354.44
  6. Step 6: Final answer
    x = 11,148.13

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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.