Home / 18,295.22-25,248.57-11,220.68

Finding the Fourth Proportional to 18,295.22, 25,248.57 and 11,220.68

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Solution

The fourth proportional to 18,295.22, 25,248.57 and 11,220.68 is: 15,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.22 : 25,248.57 = 11,220.68 : x
  2. Step 2: Convert to fraction form
    18,295.22/25,248.57 = 11,220.68/x
  3. Step 3: Cross multiply
    18,295.22x = 25,248.57 × 11,220.68
  4. Step 4: Simplify right side
    18,295.22x = 283,306,124.43
  5. Step 5: Solve for x
    x = 283,306,124.43/18,295.22
  6. Step 6: Final answer
    x = 15,485.25

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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.