Home / 18,612.10-25,684.80-10,114.29

Finding the Fourth Proportional to 18,612.10, 25,684.80 and 10,114.29

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Solution

The fourth proportional to 18,612.10, 25,684.80 and 10,114.29 is: 13,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.10 : 25,684.80 = 10,114.29 : x
  2. Step 2: Convert to fraction form
    18,612.10/25,684.80 = 10,114.29/x
  3. Step 3: Cross multiply
    18,612.10x = 25,684.80 × 10,114.29
  4. Step 4: Simplify right side
    18,612.10x = 259,783,515.79
  5. Step 5: Solve for x
    x = 259,783,515.79/18,612.10
  6. Step 6: Final answer
    x = 13,957.78

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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.