Home / 7,815.24-10,788.58-4,986.44

Finding the Fourth Proportional to 7,815.24, 10,788.58 and 4,986.44

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Solution

The fourth proportional to 7,815.24, 10,788.58 and 4,986.44 is: 6,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.24 : 10,788.58 = 4,986.44 : x
  2. Step 2: Convert to fraction form
    7,815.24/10,788.58 = 4,986.44/x
  3. Step 3: Cross multiply
    7,815.24x = 10,788.58 × 4,986.44
  4. Step 4: Simplify right side
    7,815.24x = 53,796,606.86
  5. Step 5: Solve for x
    x = 53,796,606.86/7,815.24
  6. Step 6: Final answer
    x = 6,883.55

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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.