Home / 7,826.42-10,800.95-4,289.63

Finding the Fourth Proportional to 7,826.42, 10,800.95 and 4,289.63

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Solution

The fourth proportional to 7,826.42, 10,800.95 and 4,289.63 is: 5,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.42 : 10,800.95 = 4,289.63 : x
  2. Step 2: Convert to fraction form
    7,826.42/10,800.95 = 4,289.63/x
  3. Step 3: Cross multiply
    7,826.42x = 10,800.95 × 4,289.63
  4. Step 4: Simplify right side
    7,826.42x = 46,332,003.70
  5. Step 5: Solve for x
    x = 46,332,003.70/7,826.42
  6. Step 6: Final answer
    x = 5,919.95

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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.