Home / 8,345.30-12,519.27-3,960.36

Finding the Fourth Proportional to 8,345.30, 12,519.27 and 3,960.36

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Solution

The fourth proportional to 8,345.30, 12,519.27 and 3,960.36 is: 5,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.30 : 12,519.27 = 3,960.36 : x
  2. Step 2: Convert to fraction form
    8,345.30/12,519.27 = 3,960.36/x
  3. Step 3: Cross multiply
    8,345.30x = 12,519.27 × 3,960.36
  4. Step 4: Simplify right side
    8,345.30x = 49,580,816.14
  5. Step 5: Solve for x
    x = 49,580,816.14/8,345.30
  6. Step 6: Final answer
    x = 5,941.17

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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.