Home / 7,853.40-11,780.07-2,009.85

Finding the Fourth Proportional to 7,853.40, 11,780.07 and 2,009.85

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Solution

The fourth proportional to 7,853.40, 11,780.07 and 2,009.85 is: 3,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.40 : 11,780.07 = 2,009.85 : x
  2. Step 2: Convert to fraction form
    7,853.40/11,780.07 = 2,009.85/x
  3. Step 3: Cross multiply
    7,853.40x = 11,780.07 × 2,009.85
  4. Step 4: Simplify right side
    7,853.40x = 23,676,173.69
  5. Step 5: Solve for x
    x = 23,676,173.69/7,853.40
  6. Step 6: Final answer
    x = 3,014.77

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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.