Home / 7,800.86-11,680.72-4,673.45

Finding the Fourth Proportional to 7,800.86, 11,680.72 and 4,673.45

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Solution

The fourth proportional to 7,800.86, 11,680.72 and 4,673.45 is: 6,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.86 : 11,680.72 = 4,673.45 : x
  2. Step 2: Convert to fraction form
    7,800.86/11,680.72 = 4,673.45/x
  3. Step 3: Cross multiply
    7,800.86x = 11,680.72 × 4,673.45
  4. Step 4: Simplify right side
    7,800.86x = 54,589,260.88
  5. Step 5: Solve for x
    x = 54,589,260.88/7,800.86
  6. Step 6: Final answer
    x = 6,997.85

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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.