Home / 7,836.86-10,815.10-4,300.31

Finding the Fourth Proportional to 7,836.86, 10,815.10 and 4,300.31

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Solution

The fourth proportional to 7,836.86, 10,815.10 and 4,300.31 is: 5,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.86 : 10,815.10 = 4,300.31 : x
  2. Step 2: Convert to fraction form
    7,836.86/10,815.10 = 4,300.31/x
  3. Step 3: Cross multiply
    7,836.86x = 10,815.10 × 4,300.31
  4. Step 4: Simplify right side
    7,836.86x = 46,508,217.85
  5. Step 5: Solve for x
    x = 46,508,217.85/7,836.86
  6. Step 6: Final answer
    x = 5,934.55

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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.