Home / 12,901.14-19,354.44-4,142.21

Finding the Fourth Proportional to 12,901.14, 19,354.44 and 4,142.21

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Solution

The fourth proportional to 12,901.14, 19,354.44 and 4,142.21 is: 6,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.14 : 19,354.44 = 4,142.21 : x
  2. Step 2: Convert to fraction form
    12,901.14/19,354.44 = 4,142.21/x
  3. Step 3: Cross multiply
    12,901.14x = 19,354.44 × 4,142.21
  4. Step 4: Simplify right side
    12,901.14x = 80,170,073.67
  5. Step 5: Solve for x
    x = 80,170,073.67/12,901.14
  6. Step 6: Final answer
    x = 6,214.19

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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.