Home / 7,789.11-10,750.37-4,645.50

Finding the Fourth Proportional to 7,789.11, 10,750.37 and 4,645.50

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Solution

The fourth proportional to 7,789.11, 10,750.37 and 4,645.50 is: 6,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.11 : 10,750.37 = 4,645.50 : x
  2. Step 2: Convert to fraction form
    7,789.11/10,750.37 = 4,645.50/x
  3. Step 3: Cross multiply
    7,789.11x = 10,750.37 × 4,645.50
  4. Step 4: Simplify right side
    7,789.11x = 49,940,820.61
  5. Step 5: Solve for x
    x = 49,940,820.61/7,789.11
  6. Step 6: Final answer
    x = 6,411.62

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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.