Home / 14,243.72-21,368.21-7,131.71

Finding the Fourth Proportional to 14,243.72, 21,368.21 and 7,131.71

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Solution

The fourth proportional to 14,243.72, 21,368.21 and 7,131.71 is: 10,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.72 : 21,368.21 = 7,131.71 : x
  2. Step 2: Convert to fraction form
    14,243.72/21,368.21 = 7,131.71/x
  3. Step 3: Cross multiply
    14,243.72x = 21,368.21 × 7,131.71
  4. Step 4: Simplify right side
    14,243.72x = 152,391,734.44
  5. Step 5: Solve for x
    x = 152,391,734.44/14,243.72
  6. Step 6: Final answer
    x = 10,698.88

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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.