Home / 27,686.40-41,528.15-7,964.19

Finding the Fourth Proportional to 27,686.40, 41,528.15 and 7,964.19

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Solution

The fourth proportional to 27,686.40, 41,528.15 and 7,964.19 is: 11,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,686.40 : 41,528.15 = 7,964.19 : x
  2. Step 2: Convert to fraction form
    27,686.40/41,528.15 = 7,964.19/x
  3. Step 3: Cross multiply
    27,686.40x = 41,528.15 × 7,964.19
  4. Step 4: Simplify right side
    27,686.40x = 330,738,076.95
  5. Step 5: Solve for x
    x = 330,738,076.95/27,686.40
  6. Step 6: Final answer
    x = 11,945.87

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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.