Home / 12,029.47-18,028.31-8,708.83

Finding the Fourth Proportional to 12,029.47, 18,028.31 and 8,708.83

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Solution

The fourth proportional to 12,029.47, 18,028.31 and 8,708.83 is: 13,051.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.47 : 18,028.31 = 8,708.83 : x
  2. Step 2: Convert to fraction form
    12,029.47/18,028.31 = 8,708.83/x
  3. Step 3: Cross multiply
    12,029.47x = 18,028.31 × 8,708.83
  4. Step 4: Simplify right side
    12,029.47x = 157,005,398.36
  5. Step 5: Solve for x
    x = 157,005,398.36/12,029.47
  6. Step 6: Final answer
    x = 13,051.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.