Home / 18,722.06-25,840.48-12,767.92

Finding the Fourth Proportional to 18,722.06, 25,840.48 and 12,767.92

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Solution

The fourth proportional to 18,722.06, 25,840.48 and 12,767.92 is: 17,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.06 : 25,840.48 = 12,767.92 : x
  2. Step 2: Convert to fraction form
    18,722.06/25,840.48 = 12,767.92/x
  3. Step 3: Cross multiply
    18,722.06x = 25,840.48 × 12,767.92
  4. Step 4: Simplify right side
    18,722.06x = 329,929,181.40
  5. Step 5: Solve for x
    x = 329,929,181.40/18,722.06
  6. Step 6: Final answer
    x = 17,622.48

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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.