Home / 18,771.32-25,907.34-10,705.00

Finding the Fourth Proportional to 18,771.32, 25,907.34 and 10,705.00

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Solution

The fourth proportional to 18,771.32, 25,907.34 and 10,705.00 is: 14,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.32 : 25,907.34 = 10,705.00 : x
  2. Step 2: Convert to fraction form
    18,771.32/25,907.34 = 10,705.00/x
  3. Step 3: Cross multiply
    18,771.32x = 25,907.34 × 10,705.00
  4. Step 4: Simplify right side
    18,771.32x = 277,337,921.21
  5. Step 5: Solve for x
    x = 277,337,921.21/18,771.32
  6. Step 6: Final answer
    x = 14,774.55

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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.