Home / 18,612.54-25,687.49-10,657.31

Finding the Fourth Proportional to 18,612.54, 25,687.49 and 10,657.31

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Solution

The fourth proportional to 18,612.54, 25,687.49 and 10,657.31 is: 14,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.54 : 25,687.49 = 10,657.31 : x
  2. Step 2: Convert to fraction form
    18,612.54/25,687.49 = 10,657.31/x
  3. Step 3: Cross multiply
    18,612.54x = 25,687.49 × 10,657.31
  4. Step 4: Simplify right side
    18,612.54x = 273,759,362.33
  5. Step 5: Solve for x
    x = 273,759,362.33/18,612.54
  6. Step 6: Final answer
    x = 14,708.33

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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.