Home / 12,917.19-19,363.40-4,146.11

Finding the Fourth Proportional to 12,917.19, 19,363.40 and 4,146.11

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Solution

The fourth proportional to 12,917.19, 19,363.40 and 4,146.11 is: 6,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.19 : 19,363.40 = 4,146.11 : x
  2. Step 2: Convert to fraction form
    12,917.19/19,363.40 = 4,146.11/x
  3. Step 3: Cross multiply
    12,917.19x = 19,363.40 × 4,146.11
  4. Step 4: Simplify right side
    12,917.19x = 80,282,786.37
  5. Step 5: Solve for x
    x = 80,282,786.37/12,917.19
  6. Step 6: Final answer
    x = 6,215.19

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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.