Home / 12,910.03-19,363.21-4,143.81

Finding the Fourth Proportional to 12,910.03, 19,363.21 and 4,143.81

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Solution

The fourth proportional to 12,910.03, 19,363.21 and 4,143.81 is: 6,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.03 : 19,363.21 = 4,143.81 : x
  2. Step 2: Convert to fraction form
    12,910.03/19,363.21 = 4,143.81/x
  3. Step 3: Cross multiply
    12,910.03x = 19,363.21 × 4,143.81
  4. Step 4: Simplify right side
    12,910.03x = 80,237,463.23
  5. Step 5: Solve for x
    x = 80,237,463.23/12,910.03
  6. Step 6: Final answer
    x = 6,215.13

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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.