Home / 11,878.47-17,717.24-11,193.21

Finding the Fourth Proportional to 11,878.47, 17,717.24 and 11,193.21

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Solution

The fourth proportional to 11,878.47, 17,717.24 and 11,193.21 is: 16,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.47 : 17,717.24 = 11,193.21 : x
  2. Step 2: Convert to fraction form
    11,878.47/17,717.24 = 11,193.21/x
  3. Step 3: Cross multiply
    11,878.47x = 17,717.24 × 11,193.21
  4. Step 4: Simplify right side
    11,878.47x = 198,312,815.92
  5. Step 5: Solve for x
    x = 198,312,815.92/11,878.47
  6. Step 6: Final answer
    x = 16,695.15

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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.