Home / 12,439.09-17,165.55-6,773.68

Finding the Fourth Proportional to 12,439.09, 17,165.55 and 6,773.68

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Solution

The fourth proportional to 12,439.09, 17,165.55 and 6,773.68 is: 9,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.09 : 17,165.55 = 6,773.68 : x
  2. Step 2: Convert to fraction form
    12,439.09/17,165.55 = 6,773.68/x
  3. Step 3: Cross multiply
    12,439.09x = 17,165.55 × 6,773.68
  4. Step 4: Simplify right side
    12,439.09x = 116,273,942.72
  5. Step 5: Solve for x
    x = 116,273,942.72/12,439.09
  6. Step 6: Final answer
    x = 9,347.46

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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.