Home / 14,008.10-21,012.21-4,147.56

Finding the Fourth Proportional to 14,008.10, 21,012.21 and 4,147.56

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Solution

The fourth proportional to 14,008.10, 21,012.21 and 4,147.56 is: 6,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.10 : 21,012.21 = 4,147.56 : x
  2. Step 2: Convert to fraction form
    14,008.10/21,012.21 = 4,147.56/x
  3. Step 3: Cross multiply
    14,008.10x = 21,012.21 × 4,147.56
  4. Step 4: Simplify right side
    14,008.10x = 87,149,401.71
  5. Step 5: Solve for x
    x = 87,149,401.71/14,008.10
  6. Step 6: Final answer
    x = 6,221.36

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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.