Home / 14,148.43-21,228.11-4,287.79

Finding the Fourth Proportional to 14,148.43, 21,228.11 and 4,287.79

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Solution

The fourth proportional to 14,148.43, 21,228.11 and 4,287.79 is: 6,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.43 : 21,228.11 = 4,287.79 : x
  2. Step 2: Convert to fraction form
    14,148.43/21,228.11 = 4,287.79/x
  3. Step 3: Cross multiply
    14,148.43x = 21,228.11 × 4,287.79
  4. Step 4: Simplify right side
    14,148.43x = 91,021,677.78
  5. Step 5: Solve for x
    x = 91,021,677.78/14,148.43
  6. Step 6: Final answer
    x = 6,433.34

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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.