Home / 12,401.87-17,148.21-12,201.56

Finding the Fourth Proportional to 12,401.87, 17,148.21 and 12,201.56

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Solution

The fourth proportional to 12,401.87, 17,148.21 and 12,201.56 is: 16,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.87 : 17,148.21 = 12,201.56 : x
  2. Step 2: Convert to fraction form
    12,401.87/17,148.21 = 12,201.56/x
  3. Step 3: Cross multiply
    12,401.87x = 17,148.21 × 12,201.56
  4. Step 4: Simplify right side
    12,401.87x = 209,234,827.47
  5. Step 5: Solve for x
    x = 209,234,827.47/12,401.87
  6. Step 6: Final answer
    x = 16,871.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.