Home / 11,679.17-16,117.60-6,644.11

Finding the Fourth Proportional to 11,679.17, 16,117.60 and 6,644.11

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Solution

The fourth proportional to 11,679.17, 16,117.60 and 6,644.11 is: 9,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.17 : 16,117.60 = 6,644.11 : x
  2. Step 2: Convert to fraction form
    11,679.17/16,117.60 = 6,644.11/x
  3. Step 3: Cross multiply
    11,679.17x = 16,117.60 × 6,644.11
  4. Step 4: Simplify right side
    11,679.17x = 107,087,026.75
  5. Step 5: Solve for x
    x = 107,087,026.75/11,679.17
  6. Step 6: Final answer
    x = 9,169.07

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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.