Home / 7,826.60-10,800.63-4,289.79

Finding the Fourth Proportional to 7,826.60, 10,800.63 and 4,289.79

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Solution

The fourth proportional to 7,826.60, 10,800.63 and 4,289.79 is: 5,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.60 : 10,800.63 = 4,289.79 : x
  2. Step 2: Convert to fraction form
    7,826.60/10,800.63 = 4,289.79/x
  3. Step 3: Cross multiply
    7,826.60x = 10,800.63 × 4,289.79
  4. Step 4: Simplify right side
    7,826.60x = 46,332,434.57
  5. Step 5: Solve for x
    x = 46,332,434.57/7,826.60
  6. Step 6: Final answer
    x = 5,919.87

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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.