Home / 7,849.43-11,778.18-4,338.78

Finding the Fourth Proportional to 7,849.43, 11,778.18 and 4,338.78

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Solution

The fourth proportional to 7,849.43, 11,778.18 and 4,338.78 is: 6,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.43 : 11,778.18 = 4,338.78 : x
  2. Step 2: Convert to fraction form
    7,849.43/11,778.18 = 4,338.78/x
  3. Step 3: Cross multiply
    7,849.43x = 11,778.18 × 4,338.78
  4. Step 4: Simplify right side
    7,849.43x = 51,102,931.82
  5. Step 5: Solve for x
    x = 51,102,931.82/7,849.43
  6. Step 6: Final answer
    x = 6,510.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.