Home / 12,423.13-17,143.89-6,757.84

Finding the Fourth Proportional to 12,423.13, 17,143.89 and 6,757.84

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Solution

The fourth proportional to 12,423.13, 17,143.89 and 6,757.84 is: 9,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.13 : 17,143.89 = 6,757.84 : x
  2. Step 2: Convert to fraction form
    12,423.13/17,143.89 = 6,757.84/x
  3. Step 3: Cross multiply
    12,423.13x = 17,143.89 × 6,757.84
  4. Step 4: Simplify right side
    12,423.13x = 115,855,665.60
  5. Step 5: Solve for x
    x = 115,855,665.60/12,423.13
  6. Step 6: Final answer
    x = 9,325.80

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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.