Home / 12,240.03-18,359.07-3,917.81

Finding the Fourth Proportional to 12,240.03, 18,359.07 and 3,917.81

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Solution

The fourth proportional to 12,240.03, 18,359.07 and 3,917.81 is: 5,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.03 : 18,359.07 = 3,917.81 : x
  2. Step 2: Convert to fraction form
    12,240.03/18,359.07 = 3,917.81/x
  3. Step 3: Cross multiply
    12,240.03x = 18,359.07 × 3,917.81
  4. Step 4: Simplify right side
    12,240.03x = 71,927,348.04
  5. Step 5: Solve for x
    x = 71,927,348.04/12,240.03
  6. Step 6: Final answer
    x = 5,876.40

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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.