Home / 15,083.43-20,808.14-9,414.51

Finding the Fourth Proportional to 15,083.43, 20,808.14 and 9,414.51

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Solution

The fourth proportional to 15,083.43, 20,808.14 and 9,414.51 is: 12,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.43 : 20,808.14 = 9,414.51 : x
  2. Step 2: Convert to fraction form
    15,083.43/20,808.14 = 9,414.51/x
  3. Step 3: Cross multiply
    15,083.43x = 20,808.14 × 9,414.51
  4. Step 4: Simplify right side
    15,083.43x = 195,898,395.04
  5. Step 5: Solve for x
    x = 195,898,395.04/15,083.43
  6. Step 6: Final answer
    x = 12,987.66

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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.