Home / 18,771.58-25,907.68-10,705.25

Finding the Fourth Proportional to 18,771.58, 25,907.68 and 10,705.25

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Solution

The fourth proportional to 18,771.58, 25,907.68 and 10,705.25 is: 14,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.58 : 25,907.68 = 10,705.25 : x
  2. Step 2: Convert to fraction form
    18,771.58/25,907.68 = 10,705.25/x
  3. Step 3: Cross multiply
    18,771.58x = 25,907.68 × 10,705.25
  4. Step 4: Simplify right side
    18,771.58x = 277,348,088.54
  5. Step 5: Solve for x
    x = 277,348,088.54/18,771.58
  6. Step 6: Final answer
    x = 14,774.90

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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.