Home / 12,521.80-17,283.06-8,273.68

Finding the Fourth Proportional to 12,521.80, 17,283.06 and 8,273.68

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Solution

The fourth proportional to 12,521.80, 17,283.06 and 8,273.68 is: 11,419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.80 : 17,283.06 = 8,273.68 : x
  2. Step 2: Convert to fraction form
    12,521.80/17,283.06 = 8,273.68/x
  3. Step 3: Cross multiply
    12,521.80x = 17,283.06 × 8,273.68
  4. Step 4: Simplify right side
    12,521.80x = 142,994,507.86
  5. Step 5: Solve for x
    x = 142,994,507.86/12,521.80
  6. Step 6: Final answer
    x = 11,419.64

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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.