Home / 12,439.10-17,165.70-6,773.91

Finding the Fourth Proportional to 12,439.10, 17,165.70 and 6,773.91

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Solution

The fourth proportional to 12,439.10, 17,165.70 and 6,773.91 is: 9,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.10 : 17,165.70 = 6,773.91 : x
  2. Step 2: Convert to fraction form
    12,439.10/17,165.70 = 6,773.91/x
  3. Step 3: Cross multiply
    12,439.10x = 17,165.70 × 6,773.91
  4. Step 4: Simplify right side
    12,439.10x = 116,278,923.82
  5. Step 5: Solve for x
    x = 116,278,923.82/12,439.10
  6. Step 6: Final answer
    x = 9,347.86

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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.