Home / 11,679.57-16,117.85-6,374.51

Finding the Fourth Proportional to 11,679.57, 16,117.85 and 6,374.51

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Solution

The fourth proportional to 11,679.57, 16,117.85 and 6,374.51 is: 8,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.57 : 16,117.85 = 6,374.51 : x
  2. Step 2: Convert to fraction form
    11,679.57/16,117.85 = 6,374.51/x
  3. Step 3: Cross multiply
    11,679.57x = 16,117.85 × 6,374.51
  4. Step 4: Simplify right side
    11,679.57x = 102,743,391.79
  5. Step 5: Solve for x
    x = 102,743,391.79/11,679.57
  6. Step 6: Final answer
    x = 8,796.85

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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.