Home / 18,619.92-25,705.44-11,552.40

Finding the Fourth Proportional to 18,619.92, 25,705.44 and 11,552.40

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Solution

The fourth proportional to 18,619.92, 25,705.44 and 11,552.40 is: 15,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.92 : 25,705.44 = 11,552.40 : x
  2. Step 2: Convert to fraction form
    18,619.92/25,705.44 = 11,552.40/x
  3. Step 3: Cross multiply
    18,619.92x = 25,705.44 × 11,552.40
  4. Step 4: Simplify right side
    18,619.92x = 296,959,525.06
  5. Step 5: Solve for x
    x = 296,959,525.06/18,619.92
  6. Step 6: Final answer
    x = 15,948.49

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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.