Home / 18,290.34-25,240.68-9,906.84

Finding the Fourth Proportional to 18,290.34, 25,240.68 and 9,906.84

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Solution

The fourth proportional to 18,290.34, 25,240.68 and 9,906.84 is: 13,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.34 : 25,240.68 = 9,906.84 : x
  2. Step 2: Convert to fraction form
    18,290.34/25,240.68 = 9,906.84/x
  3. Step 3: Cross multiply
    18,290.34x = 25,240.68 × 9,906.84
  4. Step 4: Simplify right side
    18,290.34x = 250,055,378.25
  5. Step 5: Solve for x
    x = 250,055,378.25/18,290.34
  6. Step 6: Final answer
    x = 13,671.45

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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.