Home / 12,730.62-17,555.31-8,480.46

Finding the Fourth Proportional to 12,730.62, 17,555.31 and 8,480.46

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Solution

The fourth proportional to 12,730.62, 17,555.31 and 8,480.46 is: 11,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.62 : 17,555.31 = 8,480.46 : x
  2. Step 2: Convert to fraction form
    12,730.62/17,555.31 = 8,480.46/x
  3. Step 3: Cross multiply
    12,730.62x = 17,555.31 × 8,480.46
  4. Step 4: Simplify right side
    12,730.62x = 148,877,104.24
  5. Step 5: Solve for x
    x = 148,877,104.24/12,730.62
  6. Step 6: Final answer
    x = 11,694.41

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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.