Home / 11,680.39-17,417.72-11,575.09

Finding the Fourth Proportional to 11,680.39, 17,417.72 and 11,575.09

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Solution

The fourth proportional to 11,680.39, 17,417.72 and 11,575.09 is: 17,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.39 : 17,417.72 = 11,575.09 : x
  2. Step 2: Convert to fraction form
    11,680.39/17,417.72 = 11,575.09/x
  3. Step 3: Cross multiply
    11,680.39x = 17,417.72 × 11,575.09
  4. Step 4: Simplify right side
    11,680.39x = 201,611,676.59
  5. Step 5: Solve for x
    x = 201,611,676.59/11,680.39
  6. Step 6: Final answer
    x = 17,260.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.