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Finding the Fourth Proportional to 7,800.90, 10,765.26 and 4,443.86

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Solution

The fourth proportional to 7,800.90, 10,765.26 and 4,443.86 is: 6,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.90 : 10,765.26 = 4,443.86 : x
  2. Step 2: Convert to fraction form
    7,800.90/10,765.26 = 4,443.86/x
  3. Step 3: Cross multiply
    7,800.90x = 10,765.26 × 4,443.86
  4. Step 4: Simplify right side
    7,800.90x = 47,839,308.30
  5. Step 5: Solve for x
    x = 47,839,308.30/7,800.90
  6. Step 6: Final answer
    x = 6,132.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.