Home / 8,623.49-12,931.14-3,942.11

Finding the Fourth Proportional to 8,623.49, 12,931.14 and 3,942.11

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Solution

The fourth proportional to 8,623.49, 12,931.14 and 3,942.11 is: 5,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.49 : 12,931.14 = 3,942.11 : x
  2. Step 2: Convert to fraction form
    8,623.49/12,931.14 = 3,942.11/x
  3. Step 3: Cross multiply
    8,623.49x = 12,931.14 × 3,942.11
  4. Step 4: Simplify right side
    8,623.49x = 50,975,976.31
  5. Step 5: Solve for x
    x = 50,975,976.31/8,623.49
  6. Step 6: Final answer
    x = 5,911.29

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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.