Home / 7,941.40-11,912.18-3,009.71

Finding the Fourth Proportional to 7,941.40, 11,912.18 and 3,009.71

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Solution

The fourth proportional to 7,941.40, 11,912.18 and 3,009.71 is: 4,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.40 : 11,912.18 = 3,009.71 : x
  2. Step 2: Convert to fraction form
    7,941.40/11,912.18 = 3,009.71/x
  3. Step 3: Cross multiply
    7,941.40x = 11,912.18 × 3,009.71
  4. Step 4: Simplify right side
    7,941.40x = 35,852,207.27
  5. Step 5: Solve for x
    x = 35,852,207.27/7,941.40
  6. Step 6: Final answer
    x = 4,514.60

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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.