Home / 7,784.52-10,742.43-4,247.73

Finding the Fourth Proportional to 7,784.52, 10,742.43 and 4,247.73

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Solution

The fourth proportional to 7,784.52, 10,742.43 and 4,247.73 is: 5,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.52 : 10,742.43 = 4,247.73 : x
  2. Step 2: Convert to fraction form
    7,784.52/10,742.43 = 4,247.73/x
  3. Step 3: Cross multiply
    7,784.52x = 10,742.43 × 4,247.73
  4. Step 4: Simplify right side
    7,784.52x = 45,630,942.18
  5. Step 5: Solve for x
    x = 45,630,942.18/7,784.52
  6. Step 6: Final answer
    x = 5,861.75

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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.