Home / 14,243.20-21,364.80-6,467.20

Finding the Fourth Proportional to 14,243.20, 21,364.80 and 6,467.20

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Solution

The fourth proportional to 14,243.20, 21,364.80 and 6,467.20 is: 9,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.20 : 21,364.80 = 6,467.20 : x
  2. Step 2: Convert to fraction form
    14,243.20/21,364.80 = 6,467.20/x
  3. Step 3: Cross multiply
    14,243.20x = 21,364.80 × 6,467.20
  4. Step 4: Simplify right side
    14,243.20x = 138,170,434.56
  5. Step 5: Solve for x
    x = 138,170,434.56/14,243.20
  6. Step 6: Final answer
    x = 9,700.80

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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.